Answered: 58. | A hotel elevator ascends 200 m…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

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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For part b, I do not really understand what the question is asking. During the 200 m trip upwards, to we have to consider that the elevator accelerates for 5 seconds, then decelarates for 5 secs and then moves with constant velocity?

I do get the final answer that is 45 secs, but Ido not conceptually understand how I am supposed to understand that there is a period of decelaration during the upward motion.

Could you please solve only part b and help me understand why both periods of acceleration and deceleration both need to be taken into consideration?

58. || A hotel elevator ascends 200 m with a maximum speed of
5.0 m/s. Its acceleration and deceleration both have a magnitude
of 1.0 m/s?.
a. How far does the elevator move while accelerating to full
speed from rest?
b. How long does it take to make the complete trip from bottom
to top?

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