Machine Gun Recoil and Maximum Firing Rate · PhysicsBowl 2022 #27
Physics · mechanics
Problem
A machine gun fires 100 g bullets at a speed of 1000 m/s. The person holding the machine gun in their hands can exert an average force of 150 N against the gun. If the gun is to remain stationary, what is the maximum number of bullets that can be fired per minute?
a. 10 b. 15 c. 30 d. 60 e. 90