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Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 2 - Problem 21q
Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 2 - Problem 21q

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Describe in words the motion plotted in Fig. 2-32 in terms ISBN: 9780130606204 3

Solution for problem 21Q Chapter 2

Physics: Principles with Applications | 6th Edition

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Problem 21Q

Describe in words the motion plotted in Fig. in terms of , etc. [Hint: First try to duplicate the motion plotted by walking or moving your hand.] Step-by-Step Solution:

Step 1 of 3

We will describe the plotted graph of a motion above.

But we need to know what how to read the speed from the graph

Slope

The slope of x-t graph of a motion gives velocity The x-t graph of car A is given aside. The slope of the graph gives its velocity.    The x-t graph of car B is given aside.     The slope of car A is bigger than slope of car B.  So velocity of car A is bigger than car B. In both two motions above, the velocity of the objects are constant , the slopes of the graphs are constant The x-t graph of car C is given aside. It is a curve, so its slope is changing. If slopes changes velocity changes.

The slope of the line tangent to graph at point gives velocity of object at that point.    _______________

Step 2 of 3

Step 3 of 3

ISBN: 9780130606204

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