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What will be the change in potential ene...

What will be the change in potential energy of a body of mass m when it is raised from height `R_E` above the Earth’s surface to 5/2 `R_E` above the Earth’s surface? `R_E and M_E` are the radius and mass of the Earth respectively

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`Delta U = GmM_E ((1)/(r_i) - (1)/(r_f))`
` GmM_E ((1)/(2R_E) - (1)/(2.5 R_E))`
` = (GmM_E)/(R_E) xx (0.5)/(2 xx 2.5) = (GmM_E)/(10R_E)`
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