Take Earth’s radius and surface acceleration due to gravity

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

Take Earth’s radius

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

and surface acceleration due to gravity

g = 9.8\,\text{m s}^{-2}

. Calculate

g'

at an altitude of

5\,\text{km}

above the surface (

h \ll R

). (a)

9.82\,\text{m s}^{-2}

(b)

9.78\,\text{m s}^{-2}

(c)

9.65\,\text{m s}^{-2}

(d)

9.79\,\text{m s}^{-2}