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

Name: A person stands on a scale inside an elevator at rest (see the figure
Uploaded: 2022-11-23T13:49:28.000Z
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Description: A person stands on a scale inside an elevator at rest (see the figure below). The scale reads W = 625 N.aW(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) T

weight of the person W = 625 N acceleration due to gravity g =9.8 ms2 a) Mass of the person m = Wg…

Answered: A person stands on a scale inside an…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 39PQ: A student takes the elevator up to the fourth floor to see her favorite physics instructor. She...

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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?

Expert Solution

Step 1

weight of the person $W = 625 N$

acceleration due to gravity $g = 9.8 \frac{m}{s^{2}}$

Mass of the person

$m = \frac{W}{g} = \frac{625}{9.8} = 63.77 k g$

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