# A bullet of mass 50g is fired from a gun of mass 6kg with a velocity of 400m//s. Calculate the recoil velocity of the gun.

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A bullet of mass 50g is fired from a gun of mass 6kg with a velocity of 400m//s. Calculate the recoil velocity of the gun.

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Here, m_(1)=50g =(50)/(1000)kg = 1/20kg, m_(2)= 6kg, v_(1)=400 m//s, v_(2)?
As m_(1)v_(1)+m_(2)v_(2)=0, v_(2)= -(m_(1)v_(1))/(m_(2))= -(1xx400)/(20xx6)= -3.3m//s.