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If gravitational potential energy of earth and a block of mass m is taken zero at the surface then potential energy of this system at a height Re above the surface is-1.mgR/22.mgR 3.-mgR /24.-mgR |
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Answer» If gravitational potential energy of earth and a block of mass m is taken zero at the surface then potential energy of this system at a height Re above the surface is- 1.mgR/2 2.mgR 3.-mgR /2 4.-mgR |
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