Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Part 1 - Multiple-Choice Practice Exam - Page 206: 18

Answer

500 W.

Work Step by Step

Divide the work done by the time. $$\frac{(100 kg)(10 N/kg)(2 m)}{4 s} = 500 W$$ This is discussed on page 112.
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