14 • • The diagram in Figure 2-30 tracks the location of an object moving in a s

Question

14 • • The diagram in Figure 2-30 tracks the location of an object moving in a straight line along the x axis. Assume that the object is at the origin at t = 0. Of the five times shown, which time (or times) represents when the object is (a) farthest from the origin, (b) at rest for an instant, (c) in the midst of being at rest for a while, and (d) moving away from the origin?

The diagram can be found in Physics for Scientists and Engineers 6th Edition by Tipler and Mosca. It is in the end of chapter problem set for Chapter 2 and is number 14. I would appreciate a solution to the problem as soon as possible. Thanks!

Explanation / Answer

a) answer is B becuase the object s intial position is at x = 0 poin B represents the instant that the object is farthest from x = 0 b) answer are B and D because slope of the graph is zero at points B and D the velocity of the object is zero and it is momentarly at rest at these points. c) answer is E because the graph is a horizontal line with zero slope the object remains at rest at the same postition. d) the correct answer si A because the slope of the graph is positive at pointA the velocity of teh object is positive and it is moving away from the origin.

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