A bullet of mass 10 is fired at a speed of 400m/s from a gun of mass 4 kg . what is the recoil velocity of the gun ?
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80 is the velocity of the gun
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Answer:
Mg= 4kg
Mb= 10kg
Vb=400m/s
Vg= ?
momentum of gun = 4Vkgm/s
momentum of bullet = 10*4 kgm/s
by law of conservation of momentum :
Mg=Mb
4V=10*400
v=1000m/s
there for recoil velocity of gun = 1000m/s
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