four uniform solid cubes of Edges 10 cm 20 cm 30 cm and 40 cm are kept on the ground touching each other in order locate centre of mass of their system.
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answer
Explanation:
volume of cube=edge×edge×edge
=10×20×30÷40
=6000÷40
=150
therefore answer is 150(I don't know whether it is right or wrong ,I just tried to help!)
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