a bullet of mass 0.02 kg is fired from a gun weighing kg if the initial velocity of the bullet is 200 metre per second calculate the speed of which the gun recoils
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║Correct Question║
Q) A bullet of mass 0.02 kg is fired from a gun weighing 7.5kg .if the initial velocity of the bullet is 200 m/s, calculate the speed with which the gun recoils ?
║Correct Answer║
According to Law of Conservation of momentum
Mass of bullet x velocity of bullet = Mass of gun x recoil velocity of gun
0.02 x 200 = 7.5 x recoil of gun
Recoil of gun = 0.02 x 200/7.5
= 0.53 m/s
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