From a rifle of mass 4 kg, a bulle of mass 50 g is fired with an initial velocity of 35 m s^-1. What is the the initial recoil velocity of the rifle?
1 Answer
Jan 23, 2018
0.4375 m/s.
Explanation:
Assuming there are no external forces to the system, then the total linear momentum
Since
From momentum conservation, then,
Then:
Note that the minus signal indicate that the rifle's velocity is opposite to the one of the bullet.