A particle undergoes uniform circular motion. About which point on the plane of the circle, will the angular momentum of the particle remain conserved ?

Question

A particle undergoes uniform circular motion. About which point on the plane of the circle, will the angular momentum of the particle remain conserved ? (A) Centre of circle (B) On the circumference of the circle (C) Inside the circle (D) Outside the circle

Tardigrade Admin · Accepted Answer

In uniform circular motion the only force acting on the particle is centripetal ( towards centre). Torque o f this force about the centre is zero. Hence, angular momentum about centre remain conserved.

Q. A particle undergoes uniform circular motion. About which point on the plane of the circle, will the angular momentum of the particle remain conserved ?

Centre of circle

On the circumference of the circle

Inside the circle

Outside the circle

In uniform circular motion the only force acting on the particle is centripetal ( towards centre). Torque o f this force about the centre is zero. Hence, angular momentum about centre remain conserved.