## Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

Published by Pearson

# Chapter 2 - Kinematics in One Dimension - Exercises and Problems: 27

#### Answer

Particle A v = -10 m/s Particle B v = -20 m/s Particle C v = 75 m/s

#### Work Step by Step

Particle A The velocity will be equal to the slope of the position versus time graph. $v = \frac{-60~m}{6~s}$ $v = -10~m/s$ Particle B We can read the velocity directly from the graph. $v = -20~m/s$ Particle C The change of velocity will be equal to the area under the acceleration versus time graph. $\Delta v = 65~m/s$ $v = v_0+\Delta v$ $v = 10~m/s + 65~m/s$ $v = 75~m/s$

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