Thursday, September 20, 2007

Potential Energy



The gravitational potential energy depends on the height
of an object over some reference level.


The potential energy depends only on the position of the object.

PE = mgh


where
PE = Energy (in Joules)
m = mass (in kilograms)
g = gravitational acceleration of the earth (9.8 m/sec2)
h = height above earth's surface (in meters)

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