1.

LNTRE OF MASS7. Two bodies of different masses 2kg and 4kgare moving with velocities 2m/s and 10m/stowards each other due to mutual gravitationalattraction. Then the velocity of the centre ofmass iS1) 5ms1 2) 6ms 3) 8ms 4) Zero

Answer»

The position of center of mass does not change because system is isolated and no external force is acting on the system. Therefore the velocity of the center of mass will be zero.



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