An Assault Rifle Fires an Eight-Shot Burst in 0

Multiple Choice

An assault rifle fires an eight-shot burst in 0.40 s. Each bullet has a mass of 7.5 g and a speed of 300 m/s as it leaves the gun. What is the average recoil force on the gun during that burst?

A) 45 N
B) 5.6 N
C) 16 N
D) 2.0 N
E) 23 N