Question

A gun of mass 50 kg fires a bullet of mass 0.25 kg with a speed of 100 m/s. Find
i) Initial momentum of gun + bullet.
ii) The momentum attained by the bullet after firing.
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Answer 1

Explanation:

mass of gun=50kg

initial velocity=0

momentum of gun =mv

50*0=0

mass of bullet =0.25kg

initial velocity =100m/s

momentum of bullet =0.25*100=25m/s

after firing momentum of bullet =0.25*0=0