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Two spheres of masses 4 kg and 8 kg are ...

Two spheres of masses 4 kg and 8 kg are moving with velocities `2 ms^(-1) and 3 ms^(-1)` away from each other along the same line. The velocity of centre of mass is

A

`(8)/(3)ms^(-1)` towards second sphere

B

`(8)/(3)ms^(-1)` towards first sphere

C

`(4)/(3)ms^(-1)` towards second sphere

D

`(4)/(3)ms^(-1)` towards first sphere

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A
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