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A bullet of mass 0.1 kg is fired with a ...

A bullet of mass `0.1` kg is fired with a speed of 100 `m//sec` , the mass of gun is 50 kg . The velocity of recoil is

A

0.2 m/s

B

0.05 m/s

C

0.1 m/s

D

0.5 m/s

Text Solution

Verified by Experts

The correct Answer is:
A
Total linear momentum before collisions
= total linear momentum after collisions
`4mtimes0+2mtimes5=(4m+2m)v`
`therefore10m=6mv`
`thereforev=10/6=5/3m//s`
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