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The bob A of a simple pendulum is releas...

The bob A of a simple pendulum is released from a horizontal position A as shownin in figure. If the length of the pendulum is 1.5m , what is the speed with which the bob arrives at the lowermost point B, given that it dissipates `5%` of its initial energy against air resistance ?

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`= 5.3 ms^(-1)`
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