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Solution


Q.

A bullet of 10 g leaves the barrel of a gun with a velocity of 600 m/s. If the barrel of the gun is 50 cm long and the mass of the gun is 3 kg, then the value of impulse supplied to the gun will be                [2023]
1 12 Ns  
2 6 Ns  
3 36 Ns  
4 3 Ns  

Ans.

(2)

By momentum conservation

0=3(-v)+0.01(600-v)

v=2 m/s

Impulse on gun = 3×2=6 Ns