A machine gun with a mass of 5kg fires a 50g bullet at a ...
A machine gun with a mass of 5kg fires a 50g bullet at a speed of 100 ms−1. The recoil speed of the machine gun is
0.5 ms−1
1.5 ms−1
1 ms−1
2ms−1
Correct answer is C
Gun Momentum = bullet momentum
MaVa = MbVb
5 x Va = 0.05 x 100
Va = 1m−1
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