Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Textbook Question
Chapter 15.5, Problem 1aTH
Reference frame of boat B:
Complete the upper diagram at right by drawing and labeling boats A, B, and the kayak at their positions at time
In the space at lower right, draw and label vectors for the initial position, the final position, and the displacement of the kayak in the frame of boat B.
In the frame of boat B, is the speed of the kayak greater than, less than, or equal to the speed of boat A? Explain.
Expert Solution & Answer
To determine
The position of boat A, B and kayak at time
Explanation of Solution
Introduction:
A frame of reference is a combination of coordinate
In frame of boat B, the speed of boat B is zero. Boat A and kayak will move in the left direction in frame of boat B.
The final position of boat A, boat B and in frame of boat B is shown in figure 1.
Figure 1
The initial position, final position and displacement of kayak are shown in figure 2.
Figure 2
The displacement of kayak is more than the displacement of boat A for same interval of time. So, the speed of kayak is greater than the speed of boat A in frame of boat B.
Conclusion:
Therefore, the position of boat A, B and kayak at time
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Three objects AA, BB, and CC are moving as shown in the figure below (Figure 1). Assume that vAvAv_A = 12.0 m/sm/s, vBvBv_B = 9.6 m/sm/s, and vCvCv_C = 2.8 m/sm/s.
a)
Find the xx-component of the net momentum of the particles if we define the system to consist of BB and CC.
Express your answer in kilogram meters per second.
b)
Find the xx-component of the net momentum of the particles if we define the system to consist of all three objects.
Express your answer in kilogram meters per second.
both answers are not zero, tried that its wrong.
A student has assembled an arrangement of tracks on which a steel ball has the motion represented by the v versus t graph at the right. The ball is released from rest (v = 0 cm/s) at x = 46 cm when t = 0 s.
a. At what time (to the nearest second) was the ball at x = 188 cm? Show your work, explaining how you determined your answer from the v versus t graph.
b. What was the magnitude of the average velocity of the ball over the entire time interval shown on the graph (i.e., between t = 0 s and t = 20 s)? Show all work.
Chapter 15 Solutions
Tutorials in Introductory Physics
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