Question

A hollow sphere is placed on a rough horizontal surface. A sharp impulse is given to the sphere horizontally
towards its center

• A. A frictional force acts on the sphere throughout the motion.
• B. kinetic energy remains constant throughout the motion
• C. kinetic energy of translation changes into rotation but total kinetic energy decreases initially and finally becomes constant.
• D. Work is done by the frictional force throughout the motion.

Answer 1

The correct option is C

kinetic energy of translation changes into rotation but total kinetic energy decreases initially and finally becomes constant.

CONCEPT