Question

What is potential energy? Derive and expression for the gravitational potential energy?​

Answer 1

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Expression for Gravitational Potential Energy at Height (h) – Derive ΔU = mgh. When, h<<R, then, R + h = R and g = GM/R2.

Explanation:

Considering mass "m" and height "h"

We have formula,

w=fh ........(1)

and

f=mg ........(2)

From (1) and (2), we have,

w=mgh

Gravitational potential energy is given by,

E

p

=w

∴E

p

=mgh

Hence, this is the answer.

Answer 2

Answer:

Gravitational Potential Energy Formula

m is the mass in kilograms, g is the acceleration due to gravity (9.8 on Earth) h is the height above the ground in meters.