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A gun of mass M fires a bullet of mass m with velocity v relative to the gun. The average force required to bring the gun to rest in 0.5 Sec is?

A gun of mass M fires a bullet of mass m with velocity v relative to the gun. The average force required to bring the gun to rest in 0.5 Sec is?

Grade:11

1 Answers

Susmita
425 Points
5 years ago
Initially total momentum=0
Later total momentum=MV+mv
By law of conservation of linear momentum
MV+mv=0
Or,MV=-mv
So average force required to stop gun recoil
F=MV/0.5=2MV=-2mv
The minus sign signifies it deccelerates.
If helped please approve.
 

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