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Physics
Physics
Problem
Which of the following expressions gives the approximate value of acceleration due to gravity
g
h
g_h
g
h
at a small height
h
h
h
above the Earth’s surface (where
h
≪
R
h \ll R
h
≪
R
and
R
R
R
is the Earth’s radius)? a)
g
(
1
−
h
R
)
g\bigl(1 - \dfrac{h}{R}\bigr)
g
(
1
−
R
h
)
b)
g
(
1
−
2
h
R
)
g\bigl(1 - \dfrac{2h}{R}\bigr)
g
(
1
−
R
2
h
)
c)
g
(
1
+
2
h
R
)
g\bigl(1 + \dfrac{2h}{R}\bigr)
g
(
1
+
R
2
h
)
d)
g
(
1
−
3
h
2
R
)
g\bigl(1 - \dfrac{3h}{2R}\bigr)
g
(
1
−
2
R
3
h
)
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