a bullet of mass 10 gram is fired with an initial velocity of 20 metre per second from a rifle of mass 4kg . calculate the initial recoil of the rifle ?
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Answer:
mass,m1= 10g.
velocity,v1=20m/s.
mass,m2=4kg.
velocity,v2=-(m1/m2)v1.
=-(10/4000)2000.
=- 0.0025 x 2000.
= -5m/s.
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