A particle is moving in a circular path of radius under the action of an attractive…

PHYSICS · Single correct · AP · Physics C: Mechanics · Work Energy and Power · Work Energy and Power

Problem

A particle is moving in a circular path of radius

a

under the action of an attractive potential

U = -\frac{k}{2r^2}

. Its total energy is: (1)

-\frac{k}{4a^2}

(2)

\frac{k}{2a^2}

(3) zero (4)

-\frac{3}{2}\frac{k}{a^2}