Posted by Monique on Monday, January 26, 2009 at 7:29pm.
When attempting to solve a gravitational potential energy equation, is the freefall acceleration always 9.8m/s2?

Physical Science  bobpursley, Monday, January 26, 2009 at 7:38pm
No. It depends on how far from the Center of the Earth one is.
g= forcegravity/massaccelerating= GMassEarth/distance^2 where distance is from the mass to the center of the Earth. Now if one is on the Earth's Surface, one senses a constant g. But if one goes up 1000 miles into space, g is different.
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