Physics, asked by josnajo144u, 9 months ago

a ball of mass m is moving with velocity v. it strikes the floor and rebounds with same velocity . if n such balls strike the floor per sec then force exerted by the balls on floor is​

Answers

Answered by senegan2005
1

Answer:

F=2nmu

Explanation:

change in momentum is - 2mu but the momentum is conserved in the collision so it will be 2mu.

the number of ball per sec is n & as per Newton's 2nd law force = rate of change momentum.so

the force exerted by the ball on floor = 2mu×n/ 1sec

= 2nmu

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