Two solid spheres, X and Y

PHYSICS · Single correct · CBSE · Physics · Work and Energy · Work and Energy

Problem

Two solid spheres, X and Y, roll across a horizontal surface with the same speed

v

. Sphere Y has twice the mass of sphere X. What is the ratio

K_{Y}/K_{X}

of their translational kinetic energies? (a)

1

(b)

4

(c)

2

(d)

\tfrac{1}{2}