Question

A body moves with constant angular velocity on a circle magnitude of angular acceleration

Answer 1

Answer:

ZERO,0

Explanation:

Since the angular acceleration is rate of change of angular velocity, and,  

since the velocity is constant, then rate of change of velocity is zero, therefore angular acceleration is zero.

Answer 2

The magnitude of angular acceleration is equal to 0.

Explanation:

The rate of change of angular velocity per unit time is called angular acceleration of an object. In this case, a body moves with constant angular velocity on a circle. It means, the angular velocity is not changing. Final angular velocity is equal to initial angular velocity.

If angular velocity is not changing, it means that the rate of change of angular velocity us zero. Hence, the magnitude of angular acceleration is equal to 0.

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Angular acceleration

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