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September 17, 2014

September 17, 2014

Posted by **Kyla** on Sunday, June 17, 2012 at 3:06pm.

- Physics -
**Count Iblis**, Sunday, June 17, 2012 at 4:21pmThe potential energy increase is:

W = - M m G/(2R) + M m G/R

where M is the mass of the Earth, m is the mass of the object and R is the Earth's radius and G is the gravitational constant.

We can simplify the expression for W:

W = 1/2 M m G/R = m R/2 (M G /R^2) =

m R/2 g = 2.82*10^10 J

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