A machine gun fires a bullet of mass 50 gram with a velocity of 800 m/s. The man holding the machine gune can exert a maximum force o 200N. What is the maximum number of bullets he can fire per second?

A machine gun fires a bullet of mass 50 gram with a velocity of 800 m/

1.	A machine gun fires a bullet of mass 50 gram with a velocity of 800 m/s. The man holding the machine gune can exert a maximum force o 200N. What is the maximum number of bullets he can fire per second?
Answer» 2 3 5 Any number of bullets Solution :SUPPOSE that the MAN can fire n bullets/sec `therefore` Momentum of n bullets/sec `=n(mv)= nxx50xx10^(-3) xx 800= 40n` But by Newton's second LAW F =Rate of change of momentum `therefore 200= 40n therefore n=5` bullets