1.

A dish of mass 10 gm is kept horizontally in air by firing bullets of mass 5 g each at the rate of 10 per sec. If the bullets rebound with the same speed, what is the velocity with which the bullets are fired?

A.  49 cm/sec
B.  147 cm/sec
C.  98 cm/sec  
D.  196 cm/sec
Answer» D.  196 cm/sec


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