Multiple Choice
A machine gun is attached to a railroad flatcar that rolls with negligible friction.If the railroad car has a mass of 6.35 × 104 kg,how many bullets of mass 35.0 g would have to be fired at 200 m/s off the back to give the railroad car a forward velocity of 0.56 m/s?
A) 5.1E-4
B) 2.0E+3
C) 6.5E+5
D) 5.1E+3
E) 6.5E+4
Correct Answer:
Verified
Correct Answer:
Verified
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