A particle of mass m oscillates along the horizontal diameter AB inside a smooth spherical shell of radius R. At any instant the kinetic energy of the particle is K. Then the force applied by particle on the shell at this instant is –
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Let velocity of particle at point P is v.
From conservation of mechanical energy
mv 2 = K = mgh
Let N be the normal reaction between the particle and the shell at this instant. Then
N – mg sin θ = 
Or N = mg 
+ 
= 
+ 
(mgh = K)
N = 
= force on shell
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