A machine gun fires 300 bullets per minute each with a velocity of 500 ~ms ⁻¹ . If the mass of each bullet is 4 ~g , the power of the machine gun is

Step-by-step solution

Power of the machine gun, aligned & P = total K.E. of bullet fired time & = n 1 2 mv ^2 t = n t 1 2 mv ^2 & = 300 60 1 2 4 1000 (500)^2 & = 300 60 2 1000 500 500 & P= 300 60 500=2.5 KW & aligned