Physics, asked by satguruji3218, 1 year ago

If n balls hit elastically and normally on a surface per unit time and all balls of mass m are moving with same velocity u. then force on surface is

Answers

Answered by 16shank99

18

2nmu/t
Apply newton's 2 law
Force =change of momentum
Ini vel =u
Final vel=-u, total change is 2u
Thus force=2nmu/t

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