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n balls each of mass m impinge elastical...

n balls each of mass m impinge elastically each second on a surface with velocity u. The average force experienced by the surface will be

A

mnu

B

2mnu

C

4mnu

D

`(1)/(2)mnu`

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PHYSICS GALAXY - ASHISH ARORA-LINEAR MOMENTUM & ITS CONSERVATION-Conceptual MCQ s single option correct
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