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A surface is hit elastically and normall...

A surface is hit elastically and normally by n bals per unit time, all the balls having the same mass m, and moving with the same velocity v. then the force acting on surface is

A

`mnu^(2)`

B

`1//2mnv^(2)`

C

`2mnv`

D

`2mnv^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
`(Deltap)/(sec)=(Deltap)/("collision")xx"frequency"`
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