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A pendulum consists of a small mass m at...

A pendulum consists of a small mass m at the end of a string of length L. The pendulum is pulled aside making an angle `theta` with the vertical and released. Taking the suspension point as the axis, at the instant of release

A

torque on the pendulum is mgL `cos theta`

B

torque on the pendulum is mgL `sin theta`

C

angular acceleration of pendulum is `( g cos theta)/( L)`

D

angular acceleration of pendulum is `( g sin theta)/( L)`

Text Solution

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The correct Answer is:
B, D
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