CBSE Class 9 Answered
a stone of mass 2kg is falling from a certain height. find the force of attraction between the earth and the stone.also find its acceleration.....
Asked by pratik chavan | 29 Sep, 2012, 11:40: AM
Expert Answer
The force of attraction can be found out by:
F = G Mm/(R+h)2
where R = radius of earth
M = mass of earth
m = mass of stone
h = height of stone
G = Gravitational constant
And gravitational acceleration can be found out by:
g = F/m
= GM/(R+h)2
= GM/R2 (since h is very small as compared to R)
Answered by | 29 Sep, 2012, 11:50: AM
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