Question

what is the meaning when torque is not zero but body still not moving?​

Answer 1

Answer:

ANSWER

We know, torque is rate of change of angular momentum.

∴ N= dtd L

Now, if torque is zero, then angular momentum is constant and the body will be in stable equilibrium.

And if resultant torque is not zero, then angular momentum will be varying with time. Body will be processed unstable equilibrium and it will have rotation.