Question

A bullet of mass 10 gm is fired with an initial velocity of 20m/s from a rifle of mass 4kg. Calculate the initial recoil velocity of the rifle

Answer 1

Answer:

Explanation:

4v=0.01×20

v=0.05 m/s

Answer 2

• mass,m1= 10g.
• velocity,v1=20m/s.
• mass,m2=4kg.
• velocity,v2=-(m1/m2)v1.

                    =-(10/4000)2000.

                   =- 0.0025 x 2000.

                   = -5m/s.