A tunnel is dug along a chord of the earth at a perpendicular distance R/2 from the earth’s center. The wall of the tunnel may be assumed to be frictionless. A particle is released from one end of the tunnel. The pressing force by the particle on the wall and the acceleration of the particle varies with x (distance of the particle from the center) according to:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(b, c)
F g = 
pressing force = F g cos θ = 
= 
= constant.
a = 
= 
a = 
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