Question

A body has a weight 72n.When it is taken to a height h=rradius of earth,it would weight -

Answer 1

g at h = g R²/ (R + h)²

so when u put h = R

Let's say g at h is g'

So g' = g ( h)²/ (2h)²

g' = g/4

So weight = mg'= 1/4 of what he weighs on Earth