Question

Angular momentum of a particle rotating with a central force is constant due to..??

I need conceptual clarity. Can u please help me.

Answer 1

Constant angular momentum means that there is NO torque acting on the particle.

Explanation:

A rotating particle is accelerating in the same direction as the central force tugging on it, hence the torque is zero. No torque means no angular acceleration. No angler acceleration means angular momentum remains the same. To appreciate this outcome, you need to appreciate the concept of torque and the concept of centripetal acceleration first.