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Two block of masses 10 kg and 4 kg are connected by a spring of negligible mass and placed on a frictionless horizontal surface. An impluse given a velocity of 14 m/s to the heavier block in the direction of the leghter block. The velocity of centre of mass is :A. 30 m/sB. 20 m/sC. 10 m/sD. 5 m/s |
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Answer» Correct Answer - C `vec(v)_(COM) = (10 xx 14 + 4 xx 0)/(10 + 4)` `vec(v)_(COM) = (10 xx 14 + 4 xx 0)/(10 + 4)` |
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