Karen has a mass of 53 kg as she rides the up escalator at woodley park station of the washington
d.
c. metro. karen rode a distance of 61.4 m, the longest escalator in the free world. the acceleration of gravity is 9.8 m/s 2 . how much work did the escalator do on karen if it has an inclination of 27.7 ? ? answer in units of j.
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Karen has a mass of 53 kg as she rides the up escalator at woodley park station of the washington
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