Question

A bullet of mass 50 g is fired from a gun with a velocity of 20 m/s. If the velocity of recoil of gun is 0.2 m/s, find the mass of the gun.
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Answer 1

mass of bullet(m) =50g

velocity of bullet(v)=20m/s

velocity of gun(V)=0.2m/s

MV=-mv

0.2V=500×20

V=-500×20/0.2

=-5000

I guess and I did . please same if it is right.