chp2 problem56 soln

Physics: Principles with Applications

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Solution (a) Since the object's x-position at point B is less then at point A the object is moving in the negative direction. Solution (b) Since the object moves a greater distance between 1 s and 1.5 s then it does between 0 s and .5 s the object's must be speeding up. Solution (c) Since the object's position is decreasing (part a) and its speed is increasing (part b) the acceleration must be negative. Solution (d) Since the object's x-position at point D is less then at point E the object is moving in the positive direction.
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Unformatted text preview: Solution (e) Since the object moves a greater distance between 5.5 s and 6 s then it does between 4.5 s and 5 s the object's must be speeding up. Solution (f) Since the object's position is increasing (part d) and its speed is increasing (part e) the acceleration must be positive. Solution (g) Since the object's position (x-value) doesn't change the object must not be moving at all, its speed is not increasing or decreasing and the acceleration is zero. http://www.hwproblems.com/cgi-bin/book.cgi?bookid=0044&cptn=2pr56&id=62762 [1/31/2008 12:17:04 PM]...
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This document was uploaded on 01/31/2008.

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