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A body of mass m1 = 4 kg moves at and another body of mass m2 = 2 kg moves at . The kinetic energy of centre of mass is
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Correct option is C
Velocity of centre of mass, vCM=m1dr1dt+m2dr2dtm1+m2=4×5i^+2×10i^4+2=40i^6=203i^The kinetic energy of centre of mass, K=12mvCM2=12×(4+2)×20×203×3 =12×6×20×203×3=4003 JTalk to our academic expert!
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