Question

What is gravitational potential energy?

Answer 1

u=-GmM/r
Gravitational potential energy is energy an object possesses because of its position in agravitational field. 

Answer 2

GRAVITATIONAL POTENTIAL ENERGY

When an object has due to its position above earth , energy due to its height...

Eq. is GPE = Mgh
M = Mass in KG
G = acceleration due to gravity
H = as always needed height above the ground

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