1.

The bag of sand of mass 2 kg is suspended by a rope. A bullet of mass 10 g is fired at it and gets embedded into it. The bag rises up a vertical height of 10 cm. The initial velocity of the bullet is nearly

A. 70 m/s
B. 140 m/s
C. 210 m/s
D. 280 m/s
Answer» E.


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