Question

A particle of mass M kg describes a circle of radius 1 m. The centripetal acceleration of the particle is $4m/s^2$. What will be the momentum of the particle ?

• A. 4 M
• B. 2 M
• C. 8 M
• D. M

Answer 1

Answer: (B)

2 M

Centripetal acc. =$v^2/r$

4 =$v^2$ => |v|=2

Now, momemntum =$Mv$= 2M