Question 222: Gravitation

Question

The variation of acceleration due to gravity $$g$$ with distance d from centre of the earth is best represented by
(R = Earth’s radius):

Accepted Answer

When d  R means distance of a point is d from the center of the circle where d is outside of the earth's surface. In this case the value of acceleration, $$g =  - {{GM} \over {{d^2}}}$$
$$	herefore$$ $$g \propto {1 \over {{d^2}}}$$
So outside of the earth surface g - d graph is hyperbolic.

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Gravitation

The variation of acceleration due to gravity $g$ with distance d from centre of the earth is best represented by (R = Earth’s radius):

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