Question Details

A pendulum bob is released from angle θ with the vertical as shown in the figure. If it’s acceleration at maximum amplitude is same as at mean position, find θ

Options

A

tan-1(√2)

B

2tan-1(1/√5)

C

2tan-1(1/2)

D

tan-1(2)

Correct Answer :

2tan-1(1/2)

Solution :

At max amplitude

a1 = gsin θ

at mean position

a2 = v2/I

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