Question

A bullet of mass 50 gram sleep the barrel of gun with the velocity of 120 metre per second the gun recoils with the velocity of1m/s . Find the mass of the gun

Answer 1

Explanation:

• we have to just use the conservation of momentum
• As initially the gun and bullet where at rest so V = 0 and initial momentum = M1V1 = 0

$m1v1 = m2v2 + m3v3$

let M2 mass of the bullet M3 mass of the gun

refer below pic for calculation

but mass of the gun is 6 gram I am getting so it's practical impossible please recheck the question