Physics

Problem

For small

h

and

d

, the ratio of the acceleration due to gravity at height

h

(

g_h

) to that at depth

d

(

g_d

) is best approximated by a)

1 - \dfrac{2h + d}{R}

1 - \dfrac{h + d}{R}

1 + \dfrac{2h - d}{R}

1 - \dfrac{2h - d}{R}