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A small body is dropped into a narrow ch...

A small body is dropped into a narrow channel drilled along the Earth axis. Considering the Earth to be a homogeneous sphere and disregarding air resistance answer the following questions. (Acceleration due gravity on the surface of the Earth is g, Radius of Earth is R)
The magnitude of body's acceleration, a(r) as a function of the distance r from the Earth's center is

A

`g r/R`

B

`2g r/R`

C

`g r/(2R)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
D
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