Physics (10th Edition)

Published by Wiley
ISBN 10: 1118486897
ISBN 13: 978-1-11848-689-4

Chapter 3 - Kinematics in Two Dimensions - Problems: 9

Answer

a) 2.47 m/$s^{2}$ b) 2.24 m/$s^{2}$

Work Step by Step

a) $v^{2}$ = $u^{2}$ + 2ax a = $\frac{v^{2} - u^{2}}{2x}$ = $\frac{7.70^{2} - 0^{2}}{(2)(12)}$ = 2.47 m/$s^{2}$ b) horizontal component of acceleration = 2.47cos(25$^{\circ}$) = 2.24 m/$s^{2}$
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