Question
When a 4 kg rifle is fired, the 10 g bullet receives an acceleration of 3 x 10^6 cm/s^2 . The magnitude of the force acting on the rifle (in newton) is
1. 300 2. 200 3. 3000
Joshi sir comment
force on the bullet = [10/1000]*3*104 = 300 N
so that will be same for rifle