time graph shows vertical position only. Log in for more information. In part (b), acceleration is not constant. 75 m/s^2. 42 m/s If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, the acceleration of the object is 2. 75 m/s is the acceleration of the object. What is the final velocity of the object? C - 114 m/s. The direction of the object = East. The average speed is 12 km/h. Added 7/2/2019 4:08:23 PM. 2. 71. ,. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. 75 m/s². 7 m/s)=35. acceleration - the rate at which the stuff changes its velocity c. 33 meters per second squared D. 13. 3 s, the velocity is zero and the boat has stopped. Instantaneous velocity is a vector quantity that includes both the speed and the direction in which the object is moving. Acceleration is defined as a vector quantity that indicates the rate of change of velocity. 75 meters per second squared. 75 m/s^2. 8 m/s every second. of change of position. 75 m /s ; acceleration = v2-v1/ t = 98 - 65 / 12 = 33/12 = 2. A car travels 65 km in 1 hour What is its average speed in meters per second. 5. To say that a projectile has a vertical acceleration of -9. The drag coefficient can depend upon velocity, but we will assume that it is a constant here. 75 m/s B. It is the rate of change of displacement. The momentum of an object depends upon the object's _____. A reference frame is a like a fixed point. Where 'm' is the mass of the body and ‘v is the velocity of the body. 8. Which of the following statements is true about the motion of the object?. the rate at which an object changes its velocity. 2. Dave: “A projectile has vertical acceleration and a constant horizontal velocity”. Identify the mass, in kilograms. Solution. The displacement is given by finding the area under the line in the velocity vs. Solution: acceleration = v2-v1/ t = 98 - 65 / 12 = 33/12 = 2. When something accelerates then stops accelerating, what happens to the object? it continues to move at a constant velocity. To visualize this, let's say for example, the object reaches zero velocity 6 seconds when it is thrown. 13. 33 meters per second squared B. Three ways an object changes velocity. Because speed is a rate, it depends on the. 58 m/s B. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 seconds what’s the acceleration of the object If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, the acceleration of the object 2. 34. 75 m/s, according to the formula and the question. Unlike simple friction, the drag force is proportional to some function of the velocity of the object in that fluid. 5. 75 m/s D. 75 m/s B. Accelerating quickly puts a lot of force on an object. 58 m/s Weegy: A tenement is a type of building shared by multiple dwellings, typically with flats or apartments on each floor and with shared entrance stairway access, on the British isles notably common in Scotland. 75 m/s D. Vertical velocity can be expressed as – g t –g t – g t. v ― = ( v + u) 2. 5. When are. Average velocity is defined to be the change in position divided by the time of travel. What acceleration caused this change in velocity? The rate at which an object's velocity changes with time is called its _____. In reality, though, a. Acceleration is the derivative of velocity, meaning it represents the change in velocity for a given time interval. 42 meters per second squared C. 75 m/s B. 42 m/s C) 2. Added 1/29/2022 12:00:20 AM. The scalar absolute value of velocity is called speed, being a. 75 meters per second squared B. Log in for more information. 75 m/s²T. 13. To find the average velocity, recall that. the velocity of the moving body is v, the velocity of light is c Solved Examples. position - where the stuff. Initial speed is 65 m/s and final speed is 25 m/s. What would be its rest mass? Answer: Known: (Mass) m = 12 kg, (Velocity) v = 0. The imaginary or actual axis around which an object may rotate. If you are moving on a straight slide. in motion. So while velocity is in m/s, we know that acceleration is m/s per s, meaning m/s^2. For example, 50 km/hr (31 mph) describes the speed at which a car is traveling along a road, while 50 km/hr west. The direction of velocity is the direction in which the object is moving. 2. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s . 62. First, we need to find the change in velocity (Δv) of the object: Δv = final velocity - initial velocity Δv = 98 m/s - 65 m/s Δv = 33 m/sif the velocity of an object changes from 65 m/s to 98 M/s during a time interval of 12 s what is the acceleration of the object Video Answer: Get the answer to your homework. 42 m/s If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12s, the acceleration of the object 2. 75 m/s^2, according to the expert-verified answer on brainly. 1. 75 is the acceleration of the object. where Δ x is displacement, x f is the final position, and x 0 is the initial position. 75 m/s B. We know from kinematics that acceleration is a change in velocity, either in. Hope this helps!Unlike speed, velocity measures displacement, a vector quantity indicating the difference between an object's final and initial positions. This means that at 5. When we push an initially resting refrigerator with an external applied force F app and start it moving, both static and kinetic friction push back on the object at. Added 1/2/2021 10:15:52 PM. That doesn't necessarily mean the object is at rest, but it means that the. Velocity defines the direction of the movement of the body or the object. We use the uppercase Greek letter delta (Δ) to mean “change in” whatever quantity follows it; thus, Δ x means change in position (final position less initial position). Like the velocity, it has a magnitude as well as a direction. 2. " Imagine a person moving. 5. 33 meters per second squared C. Let’s learn how by imagining a person pushing a refrigerator as shown in Figure 4 below. Solution: (98 m/s - 65 m/s) / 12s = 33 m/s / 12s = 2. In a force vector, the mass, m m, is the magnitude component and the acceleration, a a, is the directional component. 33 m/s C. Note that this is the same operation we did in one dimension, but now the vectors are in three-dimensional space. 13. An object moving north with an initial velocity of 14 m/s accelerates 5 m/s2 for 20 seconds. 33 m/s If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, 2. 10 years ago. • b)Find the maximum height above the table to which the 3. An object that has the same speed but changes direction is _____. 1) (3. 75 m/s^2 Score 1 User: A moon rock has a mass of 125 kg. 75 m/s B. 75 m /s. Average Velocity Equation. Problem 1: An object in motion has a mass of 12 kg and travels in the air with a velocity 0. accelerating. g = 9. The diagram below depicts the changes in velocity of a ball that undergoes a collision with a wall. 42 m/s C. Since mass is a scalar , when velocity is in a negative direction (i. Find an answer to your question if the velocity of an object changes from 65 m/s to 98 M/s during a time interval of 12 s what is the acceleration of the object if. The acceleration of the object can be found using the following formula:Acceleration = (Change in velocity) / (Time taken)Given that the initial velocity is 65 m/s, the final velocity is 98 m/s, and the time taken is 12 s, the acceleration of the object can be calculated as follows:Acceleration = (98 m/s - 65 m/s) / 12 sAcceleration = 2. 13. Average accelerationc. 58 m/s D. This means that any change in vertical speed is due to gravitational acceleration, which is 9. An object is still accelerating if it is changing its velocity time and again. 75 m/s B. This answer has been confirmed as correct and helpful. Given that,. The SI units of velocity are m/s and the SI units for time are s, so the SI units for acceleration are m/s 2. Direction. The object's acceleration is approximately 2. 75 m /s ; acceleration = v2-v1/ t = 98 - 65. 33 m/s C. 33 m/s D. The momentum of an object is defined as its mass (the kind defined by m = F/a m = F /a) times its velocity. GET. Which describes the acceleration? negative acceleration of 4 m/s2 positive acceleration of 4 m/s2 positive acceleration of 9 m/s2 negative acceleration of 9 m/s2. Momentum is a vector and has the same direction as velocity v . 33 m/s C. it is. The horizontal projectile motion equations look as follows: Equation of a trajectoryDisplacement Δ x is the change in position of an object: Δ x = x f − x 0, 3. This is a weird thing for velocity to do, but it turns out not to matter: vhits zero well before this, at which point the sign on the drag force changes and a di erent equation governs v. only the velocity of the ball. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. 2. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. In this section we will look at time, speed, and velocity to expand our understanding of motion. It is the ratio of velocity change to time between any two points in an object's path. 33 meters per second squared B. In this portion of Lesson 2 you will. 42 m/s If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12s, the acceleration of the object 2. 13. Log in for more information. It is a vector quantity. As stated previously, escape velocity can be defined as the initial velocity of an object that can escape the surface of a moon or planet. 75 m/s^2. A description of how fast or slow an object moves is its speed. As mentioned earlier in Lesson 1, an object moving in uniform circular motion is moving in a circle with a uniform or constant speed. the principle which states that the total momentum of a system is constant. TRUE OR FALSE and. If an object changes its speed or the direction of its velocity, then it has a non-zero acceleration. 2. Even if moving around the perimeter of the circle with a constant speed, there is still a change in velocity and subsequently an acceleration. what's the force of gravity acting on the rock, on the moon Weegy: 2+2=4 Score 1 If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. objects with greater _______ have greater inertia. 42 meters per second squared. V1-V0÷time. 13. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. where the primes (') indicate values after the collision. It is the rate of change of distance. When two objects bump into each other, this is called a collision. ”. 75 is the acceleration of the object. 2. A portion of the recorded data is shown in the figure above. the object no longer accelerates as it falls because the size of the force upwards (air resistance) matches the size of the force downward (gravity). The calculator can use any two of the values to calculate the third. Speed is primarily a scalar quantity. Figure 2. Where: u = initial velocity. The average velocity is the displacement or position change (a vector quantity) per time ratio. 17405 ft/s) every second. For each second of time elapsed, the velocity changes by an amount a m/s. Time (t): The duration for which the acceleration occurs. 5 ext{ s}. 5. Velocity as a Vector Quantity. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. 13. 8 m/s (in the - or downward direction) each second. 5. Applying the steps above produces: If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. The displacement for the round trip is zero, since there was no net change in position. Change in Velocity (Δv) = Acceleration (a) * Time (t) Where: Acceleration (a): The rate at which the object’s velocity changes. it's moving upward at a steady speed of 5 m/s. An alternate method to calculate angular velocity is by dividing the angle traveled (θ) by the time elapsed (t): ω = θ / t. AI-generated answer Answer No one rated this answer yet — why not be the first? 😎 topoisomerase Acceleration is the derivative of velocity, meaning it represents the. New answers. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what's the acceleration of the object? A. 2. Velocity, like speed, has SI. 13. emdjay23. 13. 5. Acceleration is given by the change in velocity (m/s) divided by the time elapsed (per s), so a = (98-65)/12. 80) h = 4. 5 × m × v². 42 meters per second squared C. 75 m/s B. 42 m/s If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, 2. Moreover, when the position, velocity and acceleration of an object are graphed over. 75 m/s B. Do not confuse speed with velocity; speed is. 75 m/s C. 5. Contrast this to a slow-moving object that has a low speed; it covers a relatively small amount of distance in the same amount of time. a. Added 5/17/2021 4:27:47 PM. what's the force of gravity acting on the rock, on the moon Weegy: 2+2=4 Score 1 User: within the. 58 m/s D. an object's resistance to any change in motion. 75 m /s is the acceleration of the object. You can convert units to km/h by multiplying the result by 3. where: m — Mass;. 75 m /s. 8 m/s each second, The horizontal motion of a projectile is independent of its vertical motion. The acceleration of an object is the rate of change of its velocity. 13. 58 m/s D. During the 1-h interval, velocity is closer to 80 km/h than 40 km/h. We are. It's all common sense – if several different forces are pushing an object, you need to work. 75 m/s, according to the web page. 42 meters per second squared C. 33 m/s D. Do not confuse speed with velocity; speed is. centripetal acceleration. The simplest case of circular motion is uniform circular motion, where an object travels a circular path at a constant speed. The sign of acceleration shows. 13. The speed of the 0. 6: 27. 75 m /s ; acceleration = v2-v1/ t = 98 - 65 / 12 = 33/12 = 2. time for a rock thrown vertically up at the edge of a cliff. 75 m /s ; acceleration = v2-v1/ t = 98 - 65. We denote it by \mathbf {p} p: \mathbf {v} v – Velocity of the object. p=mv p = mv. Identify the velocity, in meters per second. The answer is 4m/s negative acceleration. The position of a vibrating object changes as a function of time as x = (0. Log in for more information. The momentum of an object depends upon the object's O mass - how much stuff it has b. 75 m/s B. The total change in the object's speed between 1. 5 kg changes its velocity from +15 m/s to +22 m/s during a time interval of 3. Collisions. 9999999999999999 seconds, the object still has some velocity. 13. Like distance, speed is a scalar because it has a magnitude but not a direction. 5. 2. 75 m /s ]An object's speed changes whenever the rate of change between the distance the object travels and the time it takes to travel that distance changes. 13. In addition to it, the direction can also change. Note that, unlike speed, the linear velocity of an object in circular motion is constantly changing because it is always changing direction. Speed is primarily a scalar quantity. SI units of radians s 2. The kinetic energy formula defines the relationship between the mass of an object and its velocity. That is final velocity minus initial velocity divided by time. 8 m/s 2. Thus the average velocity is zero. 33 m/s If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. 5. 42 m/s If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12s, the acceleration of the object 2. The equation really says that the. In order to find the velocity of the moving object, you will need to divide the change in position by the change in time. Instantaneous speed is a measurement of how fast an object is moving at that particular moment. Velocity is a physical vector quantity: both magnitude and direction are needed to define it. stationary. relative motion. It is the rate of change of distance. 42 m/s B. Because acceleration is the rate of change of velocity, and the object is changing direction, it is said to be accelerating. 75 m/s B. 75 meters per second squared If the velocity of an object changes from 65 m/s to 98 m/s during a time. 8 kg with a velocity of 15 m/s south. To find the average velocity, recall that. Put in the formula . 75 m/s is the acceleration of the object. For v2=198:75 to be an acceleration [m=s2], 198:75 must be a length [m]. 75 m /s ] User: if the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what's the acceleration of the object? Weegy: If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12s, [ 2. An object is moving east, and its velocity changes from 65 m/s to 25 m/s in 10 seconds. Thus the average velocity is zero. At highway speeds, over 50% of the power of a car is used to overcome air drag. This answer has been confirmed as correct and helpful. Acceleration is the change in velocity, and velocity is a vector, which means it has direction. auto crashes. 2. (Right:) Path of an object whose velocity vector changes continuously and cannot be considered as linear. Velocity is essentially a vector quantity. Explanation: Acceleration is the rate of change of velocity over time. The result will be in joules if you used SI units. 2. 58 m/s C. Solve by multiplying the mass and the velocity. 33 m/s C. 3 The displacement Δ→r =→r (t2)−→r (t1) Δ r → = r → ( t 2) − r → ( t 1) is the vector from P 1 P 1 to P 2 P 2. This answer has been confirmed as correct and helpful. It has dimensions of. Instantaneous velocity is the first derivative of displacement with respect to time. 2. 75 m/s B. Vertical acceleration is equal to − g-g − g (because only gravity acts on the projectile). 75 m/s B. 58 meters per second squared D. 42 m/s If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, 2. 2. 5. Step 1/3 First, we need to find the change in velocity (Δv) of the object: Δv = final velocity - initial velocity Δv = 98 m/s - 65 m/s Δv = 33 m/s. Occasionally Sports announcers say that a person is accelerating if they are moving fast. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. User: if the velocity of and object changes from 65 m/s to 98 m/s during a time interval of 12s , whats the acceleration of the object Weegy: A tenement is a group of poorly maintained and overcrowded apartments. 42m/s (d) 33m/s This problem has been solved! If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. The object is speeding up. Third, let’s check units. v = u + at v = u + a t. t. 75 m /s ; acceleration = v2-v1/ t = 98 - 65 /. 42 m/s Weegy: If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, 2. Where: v ― = average velocity. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? Instant Video Answer. If the total energy is zero or greater, the object escapes. The acceleration is given by finding the slope of the velocity graph. The analysis of the motion involves dealing with the two motions independently. Thus, the average velocity is greater than in part (a). 33 m/s D. 75 m /s ; acceleration = v2-v1/ t = 98 - 65 / 12 = 33/12 = 2. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, the acceleration of the object 2. 5. 75 m/s^2 Score 1 User: A moon rock has a mass of 125 kg. c. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. 350 seconds. Let us assume that we have an airplane at a point “0” defined by its location X 0 and time t 0. Usually, acceleration means the speed is changing, but not always. Velocity is essentially a vector quantity. 5. 33 m/s C. 75 m /s ; acceleration = v2-v1/ t = 98 - 65. Weegy: If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, the acceleration of the object 2. 58 m/s C. If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. Speed is the rate at which an object changes its location. 5. The shape and the slope of the graphs reveal information about how fast the object is moving and in what direction; whether it is speeding up,.