Question

What do you mean by gravitational potential energy of a body? Derive an expression for the gravitational potential energy of a body of mass ‘m’ located at a distance ‘r’ from the centre of the earth.

Answer 1

Answer:

Expression for Gravitational Potential Energy at Height (h) – Derive ΔU = mgh. When, h<<R, then, R + h = R and g = GM/R2. ⇒ Note: The weight of a body at the centre of the earth is zero due to the fact that the value of g at the centre of the earth is zero.

Explanation:

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