A body weighs at Earth’s surface

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A body weighs

600\,\text{N}

at Earth’s surface. Using the approximation valid for

h\ll R

, find its weight when it is

320\,\text{km}

above the surface. (Take

R = 6.4\times10^{6}\,\text{m}

.) (a)

570\,\text{N}

(b)

540\,\text{N}

(c)

520\,\text{N}

(d)

600\,\text{N}