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Chapter 9: Q2 CQ (page 314)

Under what conditions can a rotating body be in equilibrium? Give an example.

Short Answer

Expert verified

The total torque is zero and the angular acceleration will be zero and angular velocity remains constant.

Step by step solution

01

Rotational equilibrium

When an object is in rotational equilibrium, with no external torque acting on a body, its angular acceleration will be zero. As the angular acceleration is zero, its angular velocity will be constant.

02

Explanation

So, if an object is rotating with a constant velocity in a particular space, where there is no force acting on it, we can say the object is in rotational equilibrium. For example, it can be a spinning top.

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