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10000 small ball, each weighting 1g. Str...

10000 small ball, each weighting 1g. Strike one square centimetre of area second with a velocity 100 m/s in normal directions and rebound with the same velocity . The volue of pressure on the surface will be

A

`2xx10^(10) N/m^(2)`

B

`2xx10^(5) N/m^(2)`

C

`10^(7)N//m`

D

`2xx10^(7) N/m^(2)`

Text Solution

Verified by Experts

`p=(F)/(A) ={n(mv-(-mv)})/(A)=(2mnv)/(A)`
`=(2xx10^(-3)xx10^(4)xx10^(2))/(10^(-4))=2xx10^(7)N//m^(2)`
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