COLLEGE PHYSICS (TEXT & CODE & WKBK PKG
4th Edition
ISBN: 9780134899954
Author: Knight
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 62GP
Does a real automobile have constant acceleration? Measured data for a Porsche 944 Turbo at maximum acceleration are as shown in the table.
t(s) | Vx(mph) |
0 | 0 |
2 | 28 |
4 | 46 |
6 | 60 |
8 | 70 |
10 | 78 |
a. Convert the velocities to m/s, then make a graph of velocity versus time. Based on your graph, is the acceleration constant? Explain.
b. Draw a smooth curve through the points on your graph, then use your graph to estimate the car's acceleration at 2.0 sand 8.0 s. Give your answer in SI units. Hint:
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An object is at x = 0 at t = 0 and moves along the x axis according to the velocity-time graph in Figure P2.62. (a) What is the object’s acceleration between 0 and 4.0 s? (b) What is the object's acceleration between 4.0 s and 9.0 s? (c) What is the object's acceleration between 13.0 s and 18.0 s? (d) At what time(s) is the object moving with the lowest speed? (e) At what time is the object farthest from x = 0? (1) What is the final position x of the object at t = 18.0 s? (g) Through what total distance has the object moved between t = 0 and t = 18.0 s?
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Does a real automobile have constant acceleration? Measured data for aPorsche 944 Turbo at maximum acceleration are as shown in the table.a. Convert the velocities to m/s, then make a graph of velocity versus time.Based on your graph, is the acceleration constant? Explain.b. Estimate how far the car traveled in the first 10 s.c. Draw a smooth curve through the points on your graph, then use your graph to estimate the car’s acceleration at 2.0 s and 8.0 s. Give your answer in SI units. Hint: Remember that acceleration is the slope of the velocity graph.
Chapter 2 Solutions
COLLEGE PHYSICS (TEXT & CODE & WKBK PKG
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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