A ball attached to one end of a string swing m a vertical plane such that its tangential acceleration at point A (extreme position) is equal to its acceleration at point B (mean position). The 
θ is
A
B
C
D
None of these
Text Solution
Verified by ExpertsThe correct answer is:
C
Given, 
Squaring above equation we have,
or 
On solving this equation, we get
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