A bullet of mass 20gm is fired from a gun of mass 100kg with a velocity 80m/s. find the recoil velocity of the gun
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Answer:
Mass of gun M = 100kg
mass of shell m = 0.020kg
Velocity of shell v = 80m/s
Recoil velocity of Gun V=?
initial velocities of both gun and shell will be zero
so, the initial momentum of the system will be zero.
According to the law of conservation of momentum,
Initial momentum = Final momentum
so,
0=mv-MV
∴v=mv/M
=
100
0.020×80
=0.016 m/s
∴recoil velocity of Gun=0.016m/s
Explanation:
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