1.

From a stationary tank of mass 125000 pound a small shell of mass 25 pound is fired with a muzzle velocity of 1000 ft/sec. The tank recoils with a velocity of      [NCERT 1973]

A.        0.1 ft/sec
B.        0.2 ft/sec
C.        0.4 ft/sec
D.        0.8 ft/sec
Answer» C.        0.4 ft/sec


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