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A simple pendulum consisting of a mass M...

A simple pendulum consisting of a mass M attached to a string of length L is released from rest at an angle `alpha`. A pin is located at a distance `l` below the pivot point. When the pendulum swings down, the string hits the pin as shown in figure. The maximum angle `theta` which the string makes with the vertical after hitting the pin is

A

`cos^(-1)[(L cos alpha+l)/(L+l)]`

B

`cos^(-1)[(L cos alpha-l)/(L-l)]`

C

`cos^(-1)[(L cos alpha+l)/(L-l)]`

D

`cos^(-1)[(L cos alpha-l)/(L+l)]`

Text Solution

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The correct Answer is:
B
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