Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 4 - Motion in Two and Three Dimensions - Problems: 8c

Answer

480 km/h

Work Step by Step

Velocity is defined as displacement over time. From part a, we found that the total displacement of the plane is 1080km. We are given that the first leg of the trip took 45min and the second leg took 1.50h. Converting 45 min to hours we have that it is 45/60 = 0.75h. Therefore, the trip took 1.5 + 0.75 = 2.25h Taking the total displacement, 1080km and dividing by the time we get that it is 1080km/2.25h = 480 km/h
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