Question

write the expression for the gravitational potential energy explaining the meaning of the symbols used

Answer 1

The gravitational potential energy of a body at a height is measured by the amount of work done in moving it up to that height against the force of gravity acting on the body.
The expression used for gravitational potential energy is mgh.
where, m = mass of the body
g = acceleration due to gravity
h = height from the ground.
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Answer 2

EXPRESSION FOR GRAVITATIONAL POTENTIAL ENERGY: P.E. = U = mgh Where U is gravitational potential energy m is the mass of body. g: is force of gravity on mass of 1 kg mg : is the force acting on body h : is the distance or height moved above the ground level.Read more on Sarthaks.com - https://www.sarthaks.com/154963/write-the-expression-for-gravitational-potential-energy-explaining-meaning-symbols-used