A person stands on a scale inside an elevator at rest (see the figure below). The scale reads W = 625 N.

College Physics
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Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A person stands on a scale inside an elevator at rest (see the figure below). The scale reads W = 625 N.
a
W
(a) What is the person's mass?
kg
(b) The elevator accelerates upward momentarily at the rate of a = 4 m/s?. What does the scale read then?
N
(c) The elevator then moves with a steady speed of 6 m/s. What does the scale read now?
Transcribed Image Text:A person stands on a scale inside an elevator at rest (see the figure below). The scale reads W = 625 N. a W (a) What is the person's mass? kg (b) The elevator accelerates upward momentarily at the rate of a = 4 m/s?. What does the scale read then? N (c) The elevator then moves with a steady speed of 6 m/s. What does the scale read now?
Expert Solution
Step 1

weight of the person W = 625 N

acceleration due to gravity g =9.8 ms2

a) 

Mass of the person 

m = Wg = 6259.8= 63.77 kg

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