Question

A bullet of mass 10g is fired from a rifle with a speed of 3600km/hr , calculate the speed of the recoil of the rifle,if its mass is 5kg

Answer 1

Hello ☺


Apply Law of conservation of momentum for this question.

This is a basic question.

=> since initially the gun was at rest , there initial momentum = 0

therefore the final momentum should also remain zero 

=> mv +MV = O 

therefore V= -mv/M = .01*500/5 = -1m/s*2

Answer 2

conservation of mass of momentum
using the app of topic you can solve the question
and I'm not giving me answer because and girl has already given it