College Physics (7th Edition)

Published by Pearson
ISBN 10: 0-32160-183-1
ISBN 13: 978-0-32160-183-4

Chapter 2 - Kinematics: Description of Motion - Learning Path Questions and Exercises - Exercises - Page 62: 42

Answer

$a). 27.5m/s$ $b). 237.5m$

Work Step by Step

a). $v=u+at$ $v=20+(0.75\times10)=27.5m/s$ b). $S=ut+\frac{1}{2}at^{2}$ $S=(20\times10)+(0.5\times0.75\times100)=200+37.5=237.5m$
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