- #1

marialovesphysics

- 2

- 0

m.g.h = (GMm)/r how can we prove that mgh is potential energy and both equal to that?

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- Thread starter marialovesphysics
- Start date

- #1

marialovesphysics

- 2

- 0

m.g.h = (GMm)/r how can we prove that mgh is potential energy and both equal to that?

- #2

sysprog

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- #3

mpresic3

- 377

- 267

when you use the other equation, the zero of potential energy is at r = infinity.

m gh is based on a constant gravity (or flat Earth assumption) good for local physics

the other equation is based on a inverse square gravity. good when far from Earth center.

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