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    tony abraham's Avatar
    tony abraham Posts: 1, Reputation: 1
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    #1

    Aug 1, 2014, 06:43 AM
    New angular amplitude of an oscillating pendulum
    Q. An ideal pendulum was oscillating with an amplitude 60 degree inside a stationary elevator.
    when pendulum was passing through equilibrium position the lift suddenly starts moving upward with an acceleration a=g . Find the new angular amplutude of the oscillation.
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    Aug 1, 2014, 08:06 AM
    Interesting question, although the wording is a bit ambiguous. I hope you know whether the term "amplitude" here is measured from vertical to one exrtreme, or between extremes. To solve - I suggest using conservation of energy principles.
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