Fundamentals of Physics Extended (10th Edition)

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

Chapter 7 - Kinetic Energy and Work - Questions: 9b

Answer

Spring B will do more work.

Work Step by Step

Spring Force= K$\times$Distance Work=Force$\times$ Distance ---Force is constant so the spring with the greater distance will do more work. Spring B has a smaller K than spring A, so it must have a greater distance to get the same force. Since spring B has a greater distance(and same force), it does more work.
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