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Physics / Physics with MasteringPhysics 4 / Chapter 2 / Problem 23P

Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker

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IP An expectant father paces back and forth, producing the

Chapter 2, Problem 23P

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QUESTION:

IP An expectant father paces back and forth, producing the position- versus-time graph shown in Figure 2–25. Without performing a calculation, indicate whether the father’s velocity is positive, negative, or zero on each of the following segments of the graph: (a) A, (b) B, (c) C, and (d) D. Calculate the numerical value of the father’s velocity for the segments (e) A, (f) B, (g) C, and (h) D, and show that your results verify your answers to parts (a)–(d).

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QUESTION:

IP An expectant father paces back and forth, producing the position- versus-time graph shown in Figure 2–25. Without performing a calculation, indicate whether the father’s velocity is positive, negative, or zero on each of the following segments of the graph: (a) A, (b) B, (c) C, and (d) D. Calculate the numerical value of the father’s velocity for the segments (e) A, (f) B, (g) C, and (h) D, and show that your results verify your answers to parts (a)–(d).

ANSWER:

Step 1 of 9

Part (a)

The velocity is the rate of change of position of an object. Here a father paces back and forth. His position changes over time. We are going to find the direction of the velocity without calculation.

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