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Two bodies of 6 kg and 4 kg masses have theirvelocity 5i-2)+10k and 10i-2/t5k resp-ectively. Then the velocity of their centre of massIS1) 51+2j -8k2) 71+2j-8k3) 77-2j+84) si-2j +8k |
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Answer» Vcm = V1m1+v2m2/(m1+m2) Vcm = [(5i-2j+10i)*6+(10i-2j+5k)*4]/(6+4)Vcm = [(30+40)i+(-20j)+(80k)]/10Vcm = 7i-2j+8k option 3 |
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