College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Chapter 2.1, Problem 2.3QQ
Parts (a), (b), and (c) of Figure 2.10 represent three graphs of the velocities of different objects moving in straight-line paths as functions of time. The possible accelerations of each object as functions of time are shown in parts (d), (c), and (f). Match each velocity vs. time graph with the acceleration vs. time graph that best describes the motion.
Figure 2.10 (Quick Quiz 2.3) Match each velocity vs. time graph to its corresponding acceleration vs. time graph.
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Questions 10-15 refer to the following generic graph shapes. Write the letter corresponding to the appropriate graph in
the blank at the left of each question.
A
B
C
D
7.
12. Which two shapes fit a distance vs. time graph of a motionless object?
8.
_13. Which shape fits a velocity vs. time graph of a motionless object?
9.
_14. Which shape fits a distance vs. time graph of an object that is speeding up at a steady rate?
10.
15. Which shape fits a velocity vs. time graph of an object that is speeding up at a steady rate?
Shown is a motion diagram of a car traveling down a street. The camera took one frame every second. A distance scale is provided.a. Use the scale to determine the x-value of the car at each dot. Place your data in a table, similar to Table 2.1, showing each position and the instant of time at which it occurred.b. Make a graph of x versus t, using the data in your table. Because you have data only at certain instants of time, your graph should consist of dots that are not connected together.
A motorcycle begins at rest at t0 = 0 seconds. The motorcycle starts moving, and eventually covers a distance d = 840 m, in a time tf = 189 s. In a coordinate system with north being the positive x-direction, the motorcycle's motion is in the northern direction (see figure).
1. What was the motorcycle's average velocity in in the northern direction vavg,N, in this period in meters per second?
2. If the motorcycle's final velocity at tf was 12 m/s, what was the motorcycle's average acceleration in the northern direction, aavg,N, during this period in m/s2?
Chapter 2 Solutions
College Physics
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