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CBSE Class 9 Answered

The acceleration due to gravity at a place is 0.2 m/s2. Find its height above tghe earth's surface.
Asked by rajneesh kumar | 13 Sep, 2013, 11:11: AM
answered-by-expert Expert Answer
acceleration due to gravity is expressed as :
g = (GM)/H2
where G is the universal gravitational constant
M is the mass of earth
and H is the distance between the point of observation and the center of earth.
thus if g = 0.2 m/ss
then H can be calculated and height above the earth's surface
h = H - aR
where R is the radius of Earth
Answered by | 13 Sep, 2013, 11:26: PM

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