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Q: If the instantaneous speed of an object remains constant can its instantaneous velocity change?

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No. Speed can remain constant when velocity changes, but velocity can't remain constant when speed changes.

It does not make sense to say that the instantaneous velocity is constant. Instantaneous velocity by definition means that it is the velocity at a moment of time. If this is a question on some homework, just say no. The acceleration, or rate of change of the velocity, is not necessarily constant.

Yes. Acceleration is a change in velocity. With no acceleration, velocity remains constant, possibly at zero.

The answer for the blank is "constant".

The tangent at a point on the position-time graph represents the instantaneous velocity. 1. The tangent is the instantaneous slope. 2. Rather than "average" velocity, the slope gives you "instantaneous" velocity. The average of the instantaneous gives you average velocity.

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No. Speed can remain constant when velocity changes, but velocity can't remain constant when speed changes.

It does not make sense to say that the instantaneous velocity is constant. Instantaneous velocity by definition means that it is the velocity at a moment of time. If this is a question on some homework, just say no. The acceleration, or rate of change of the velocity, is not necessarily constant.

Yes. The velocity can change if the speed remains constant and the direction changes.

Velocity can change even if speed is constant.

Velocity is dependent on speed AND direction, therefore velocity will change if the direction is changed.

No, constant velocity implies constant speed. But velocity can change even when speed remains constant, since speed is a scalar quantity but velocity is a vector quantity.

Velocity is an instantaneous measure. Mathematically, it is the limiting value of the change in the position vector divided by the change in time as the latter tends to zero. Over larger time periods, the average velocity is the total change in the position vector divided by the total change in time. If velocity is constant, the average velocity will be the same as the instantaneous velocity.

Yes. Acceleration is a change in velocity. With no acceleration, velocity remains constant, possibly at zero.

Dividing change of velocity by the time it takes to change the velocity. If acceleration is not constant, this will give you the average acceleration during the period; to get the instantaneous acceleration, you have to take the derivative of the velocity.

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 a uniform circular motion,the magnitude of velocity remains constant,that is speed is constant,however due to change in direction in circular path constantly the motion is accelerated due to change in velocity.

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

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