Essential University Physics: Volume 1 (3rd Edition)

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

Chapter 6 - Exercises and Problems - Page 105: 39


$P \approx 340 W$

Work Step by Step

We will estimate that you weigh about 70 kg and that you go down about .5 m in the process of doing the bend. We then find: $P = \frac{dW}{dt} \approx \frac{\Delta W}{\Delta T} = \frac{mgh}{t}$ $ P = \frac{mgh}{t}= \frac{70kg*9.8m/s^2*.5m}{1s}$ $P \approx 340 W$
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