A bullet of mass 10 g is horizontally fired with velocity 300 m s ^ -1 from a pistol of mass 1 kg. What is the recoil velocity of the pistol?

NDA 2022 Physics question

A bullet of mass 10 g is horizontally fired with velocity from a pistol of mass 1 kg. What is the recoil velocity of the pistol?

Answer: (C)

Before firing, the total momentum is zero, so after firing . , giving $ = -3\

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Question ID VK-032290