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Two bodies of masses 2 kg and 4 kg are m...

Two bodies of masses 2 kg and 4 kg are moving with velocities 2 m/s and 10 m/s respectively along same direction. Then the velocity of their centre of mass will be

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`vecv_(cm)=(m_(1)vecv_(1)+m_(2)vecv_(2))/(m_(1)+m_(2))=(2xx2+4xx10)/(2+4)=7.3m//s`
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