Question

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

• 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.

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