Question

A 60g bullet fired from a 5 kg gun leaves with a speed of 500 m/s. Find the speed with which the gun recoils.​

Answer 1

Hello :)

Given that

Mass of bullet = 60g =60/1000 = 0.06kg

Speed of the bullet = 500m/s

Mass of the gun= 5kg

According to the law of conservation of momentum

Momentum of bullet =momentum of gun

Mass of bullet × velocity of bullet = mass of the gun ×recoil of gun

0.06 × 500 = 5 × v

30 = 5v

v=30/5

v=6

So the recoil speed of the gun =6m/s

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