A ball reaches a racket at `60m//s` along +X dirction and leaves the racket in the opposite
Channel: Doubtnut
Date: 2020-04-12

A ball reaches a racket at `60m//s` along +X dirction and leaves the racket in the opposite direaction with the same speed. Assuming that the mass of the ball as `50gm` and the contact time is `0.02` second the force exerted by the racket on the ball is .