Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 6 - Section 6.5 - Power - Example: 6.9

Answer

320 Watts

Work Step by Step

We know that power equals force times velocity. Thus, we find: $ P = Fv = (mgsin\theta +F_{air})v $ $ P = (75 \times 9.81 sin5^{\circ} +8.2) (4.4) \approx 320 \ W $
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