Answers

2014-10-27T18:01:51+05:30
Work done=force *displacement
mg * height
=mgh
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2014-10-27T18:05:01+05:30
Potential energy of a body is the work done to take the body to a particular height. Let a body having mass m is raised to a particular height h, then the gravitational force acting on the body of the earth is m*g (which acts downwards). So the work done against he gravity will be-
Work done = F*s , where F stands for Gravitational force and s stands for displacement
Work done = mg*h
Work done = mgh
Hence,
Potential Difference = mgh 
1 3 1
thanxx
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