Question

A bullet of mass 20 gmmis horizontally fixed with a velocity 150 m/s from a pistol of mass 2 kg what is the recoil velocity of the pistol?

Answer 1

Let's take m1 = 20gm v1 = 150m/s
m2 = 2000gm v2 = ?

m1v1 = m2v2
20×150 = 2000 ×v2
3000/2000 = v2
1.5m/s = v2

Answer 2

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