Answer
It is zero.
Work Step by Step
As seen in equation 6.13, the work-energy theorem, the total work on the elevator is the change in its kinetic energy. It moves at constant speed, so the change in KE is zero, and so is the total work.
University Physics with Modern Physics (14th Edition)
by Young, Hugh D.; Freedman, Roger A.
Published by
Pearson
ISBN 10:
0321973615
ISBN 13:
978-0-32197-361-0
Chapter 6 - Work and Kinetic Energy - Problems - Discussion Questions - Page 193: Q6.2
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