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A pendulum changes height by 61.0 cm from one end of its swing to its lowest. What is the speed of the pendulum bob at the lowest point?

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3 months ago 1

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  1. oldschool
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    The PE at max height where V = 0 = KE at lowest height where h = 0
    mgh = ½mV²
    2gh = V² = 19.6*0.61 = 11.96
    V = √11.96 = 3.46m/s

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