Question

From a rifle of mass 4 kg a bullet of mass 50 gram is fired with an initial velocity of 35 m/s.calculate the initial recoil velocity of the rifle

Answer 1

the formula of recoil of gun
=Mv=-mu
=4000×x=50×35
=x=35/80
=x=7/16m/sec

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Answer 2

I think this is the answer