MHT CET 2023 Physics question
A machine gun fires bullets of mass 30g with velocity of 1000 m/s. The man holding the gun can exert a maximum force of 300 N on it. How many bullets can he fire per second at most?
Answer: (C)
Solution
Each bullet leaves with momentum kg m/s. If n bullets are fired per second, the momentum given to bullets per second (equal to the recoil force the man must balance) is . The maximum
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