A 68-kg man stands on a bathroom scale inside an elevator. The scale measures in units of newtons.   (a) The elevator accelerates upward from rest at a rate of 1.25 m/s2 for 1.50 s. What does the scale read during this 1.50 s interval?  N   (b) The elevator continues upward at constant velocity for 8.50 s. What does the scale read now?  N   (c) While still moving upward, the elevator's speed decreases at a rate of 0.450 m/s2 for 3.00 s. What is the scale reading during this time?  N

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter4: The Laws Of Motion
Section: Chapter Questions
Problem 33P: Two blocks, each of mass m = 3.50 kg, are hung from the ceiling of an elevator as in Figure P4.33....
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A 68-kg man stands on a bathroom scale inside an elevator. The scale measures in units of newtons.
 
(a) The elevator accelerates upward from rest at a rate of 1.25 m/s2 for 1.50 s. What does the scale read during this 1.50 s interval?
 N
 
(b) The elevator continues upward at constant velocity for 8.50 s. What does the scale read now?
 N
 
(c) While still moving upward, the elevator's speed decreases at a rate of 0.450 m/s2 for 3.00 s. What is the scale reading during this time?
 N
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