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Consider a uniform disc of mass m, radiu...


Consider a uniform disc of mass `m`, radius `r` rolling without slipping on a rough surface with linear acceleration `a` and angular acceleration `alpha` due to an external force F as shown in the figure coefficient of friction is `mu`.
Q. Angular momentum of the disc will be conserved about

A

centre of mass

B

point of contact

C

a point at a distance `3R//2` vertically above the point of contact

D

a point at a distance `4R//3` vertically above the point of contact.

Text Solution

Verified by Experts

About point P net torque of F and f is zero. So, angular momentumj is conserved.
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