College Physics (7th Edition)

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

Chapter 3 - Motion in Two Dimensions - Learning Path Questions and Exercises - Exercises - Page 98: 30


$(12.99x-16.2y)$ m/s

Work Step by Step

vec(A)=$5x$ m/s vec(B)=$10cos60^{\circ}x+10sin60^{\circ}y=5x+8.7y$ m/s vec(C)=$-15cos30^{\circ}+15sin30^{\circ}y=-12.99x+7.5y$ m/s So, vec(A)-vec(B)-vec(C)= $5x-5x-8.7y+12.99x-7.5y$ m/s = $(12.99x-16.2y)$ m/s
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