College Physics
OER 2016 Edition
ISBN: 9781947172173
Author: OpenStax
Publisher: OpenStax College
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Chapter 2, Problem 30CQ
To determine
(a)
The sketch of position versus time graph.
To determine
(b)
The sketch of acceleration versus time graph.
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Consider the velocity vs. time graph of a person in an elevator shown in Suppose the elevator is initially at rest.It then accelerates for 3 seconds, maintains that velocity for 15 seconds, then decelerates for 5 seconds until it stops. Theacceleration for the entire trip is not constant so we cannot use the equations of motion from Motion Equations for ConstantAcceleration in One Dimension for the complete trip. (We could, however, use them in the three individual sections whereacceleration is a constant.) Sketch graphs of (a) position vs. time and (b) acceleration vs. time for this trip.
A particle is moving at 100m/s and eventually slowed down by a uniformly increasing deceleration starting from 3m/s^2. Within 10 seconds the particle completely comes to rest. write your solution on paper
a. Compute the maximum deceleration in m/s^2
b. Compute the distance travelled in meters. round off to 3 decimal places
Chapter 2 Solutions
College Physics
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Position/Velocity/Acceleration Part 1: Definitions; Author: Professor Dave explains;https://www.youtube.com/watch?v=4dCrkp8qgLU;License: Standard YouTube License, CC-BY