A bob of mass \( m \) hangs by a light inextensible string which is connccted with a rigid suppo...
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0A bob of mass \( m \) hangs by a light inextensible string which is connccted with a rigid support after passing over a
P smooth pulley \( P \). If the bob is released from an angular position \( \theta=30^{\circ} \). then
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(1) The force exerted by the string on the pulley is \( \sqrt{3} \mathrm{mg} / 2 \)
(2) The net horizontal force exerted by the string on the pulley is \( \sqrt{3} m g ; 2 \)
(3) Acceleration of the bob is \( g / 2 \)
(4) The force exerted by the string on the wall is \( 2 m g / \sqrt{3} \)
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