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Physics

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Karen has a mass of 52.7 kg as she rides
the up escalator at Woodley Park Station of the Washington D.C. Metro. Karen rode a
distance of 57.5 m, the longest escalator in the free world. The acceleration of gravity is 9.8 m/s2 . How much work did the escalator do on
Karen if it has an inclination of 26.7?
Answer in units of J

  • Physics -

    Work = Vertical Rise*Weight
    = 57.5*sin26.7*M*g = ?

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