Question

gun of mass 2 kg has a bullet of mass 50 gram. if the bullet is fired with a velocity 100ms‐¹, what will be the recoil speed of the gun ?​

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Answer 1

Answer:

Is the answer okk?

Explanation:

From the momentum conservation,

See...

Initially the gun and the bullet was at rest so...

M(0)+m(0)=MV+mv

MV=-mv

Where,M=mass of the gun

V= velocity of the gun

m=mass of the bullet

v= velocity of the bullet

Now..MV=-mv

2000*V=-50*100

V=-5000/2000

V=-2.5m/s

Negative sign indicates that the gun will be recoiled in the opposite direction of the bullet with a recoiled velocity 2.5m/sec