A particle of mass is moving in a circle of fixed radius in such a way that its…

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Energy and Momentum of Rotating Systems · Energy and Momentum of Rotating Systems

Problem

A particle of mass

M

is moving in a circle of fixed radius

R

in such a way that its centripetal acceleration at time

t

is given by

n^2 R t^2

where

n

is a constant. The power delivered to the particle by the force acting on it, is: (1)

\frac{1}{2} M n^2 R^2 t^2

(2)

M n^2 R^2 t

(3)

M n R^2 t^2

(4)

M n R^2 t