Question

For rotational equilibrium of a rigid body, it is essential that __

• A. net torque about points lying on the axis of rotation must be zero.
• B. net torque about points lying on the body must be zero.
• C. net torque about points lying outside the body must be zero.
• D. All of these

Answer 1

The correct option is D

All of these

For a body to be in rotational equilibrium, the net torque has to be zero about all the points. If net torque acting on the body is non-zero about some point in space, then it implies that the body will have an acceleration about that particular point which is not the case here.