p02_014

Fundamentals of Physics,Vol 1 (Chapters 1 - 20)

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14. From Eq. 2-4 and Eq. 2-9, we note that the sign of the velocity is the sign of the slope in an x -vs- t plot, and the sign of the acceleration corresponds to whether such a curve is concave up or concave down. In the interest of saving space, we indicate sample points for parts (a)-(d) in a single ±gure; this means that all points are not at
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Unformatted text preview: t = 1 s (which we feel is an acceptable modi±cation of the problem – since the datum t = 1 s is not used). (c) (a) (b) (d) Any change from zero to non-zero values of ~v represents in-creasing | ~v | (speed). Also, ~v k ~a implies that the particle is going faster. Thus, points (a), (b) and (d) involve increasing speed....
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This document was uploaded on 04/18/2008.

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