A tunnel is dug along a chord of the earth at a perpendicular distance R/3 from the earth’s center. Assume wall of the tunnel is frictionless. Find the force exerted by the wall on mass m at a distance x from the center of the tunnel.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
F = mg' = mg 
= 
. 
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