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Safari File Edit View History Bookmarks Window Help session.masteringphysics.com F15OLSON111001 Help | Close CH 10 HWProblem 10.4 Resources « previous | 6 of 18 | next » Problem 10.4 Part A An escalator carries you from one level to the next in an airport terminal. The upper level is 4.3 m above the lower level, and the length of the escalator is 7.1 m.Assume that your mass is 68 kg How much work does the up escalator do on you when you ride it from the lower level to the upper level? Express your answer to two significant figures and include the appropriate units llabus W-Value Units Submit My Answers Give Up ality Part B How much work does the down escalator do on you when you ride it from the upper level to the lower level? Express your answer to two significant figures and include the appropriate units ull W-Value Units Submit My Answers Give Up Shot 17 PM Provide Feedback Continue

Explanation / Answer

part A)

work done by escaltor = m * g * h

work done by escaltor = 68 * 9.8 * 4.3

work done by escaltor = 2865.5 J

the work done by escaltor in taking from lower level to higher level is 2865.5 J

part b)

work done by escaltor = - m * g * h

work done by escaltor =- 68 * 9.8 * 4.3

work done by escaltor = - 2865.5 J

the work done by esclator in taking from the higher level to lower level is -2865.5 J

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