A chain of length 
is placed on a smooth spherical surface of radius R with one of its ends fixed at the top of the sphere. What will be the acceleration a of each element of the chain when its upper end is released? It is assumed that the length of the chain 
< 
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
a = [1 – cos( 
/R)] Rg/ 
]
Sol. Net tangential force acting on the element due to gravity is
d mg sin 
Total external force on chain along the length is
F = 
F = 
a = 
a = 
a = 
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