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The bob of a pendulum is released from a...

The bob of a pendulum is released from a horizontal position. If the length of the pendulum is 1.5m, what is the speed with which the bob arrive at the lower most point, given that, it dissipated 5% of its initial energy against air resistance?

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`l=h=1.5m`
given `1//2cancelmv^(2)=0.95cancelmgh`
`therefore v=sqrt(0.95xx2xx10xx1.5)=5.34ms^(-2)`
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