Q: What is a change in velocity over time for an object?

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Velocity is the rate of change in an object's location over time, also known as speed.

No. The definition of acceleration is the change in an object's velocity over time. Acceleration must then be zero since velocity remains constant.

In the question, "an object's change in position...over...time" is a perfectly reasonable definition of velocity.

Its velocity is reduced as a result of friction and drag.

Velocity is the change of distance over change in time (distance/unit time) and Acceleration is the change in velocity/unit time.

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If the object is in free-space, and any force applied over a period of time will change the velocity of an object. Force = mass * acceleration. Acceleration = velocity / time. Therefore, Force = mass * velocity/time.

Velocity is what makes an object change position over time.

Velocity is the rate of change in an object's location over time, also known as speed.

No. The definition of acceleration is the change in an object's velocity over time. Acceleration must then be zero since velocity remains constant.

In the question, "an object's change in position...over...time" is a perfectly reasonable definition of velocity.

Its velocity is reduced as a result of friction and drag.

Velocity is the change of distance over change in time (distance/unit time) and Acceleration is the change in velocity/unit time.

acceleration is the rate of change of velocity with respect to time.

Velocity is change in displacement over time.

Change in velocity over the change in time

Change in position over time is velocity ("speed").

No. Acceleration is change of velocity / time. If there is no change in velocity, there is no acceleration.