Derive an approximate expression for the acceleration due to gravity at a height…

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Derive an approximate expression for the acceleration due to gravity

g_h

at a height

h

above Earth’s surface, where

h \ll R

. Show that

g_h \approx g\bigl(1 - 2\tfrac{h}{R}\bigr)