from a rifle of mass 5 kg a bullet of mass 50 g is fired with an initial velocity of 50m/s..calculate the initial recoil velocity of the rifle....
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Answer:
-0.2,m/s
Step-by-step explanation:
M=5kg
m=0.05kg
total momenta before fire =0
total momenta after fire=0.05*50+5v=2.5+5v
total momenta before fire = total momenta after fire
0=2.5+5v
-2.5=5v
v=-0.5m/s
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