Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson
ISBN 10: 0133942651
ISBN 13: 978-0-13394-265-1

Chapter 5 - Force and Motion - Exercises and Problems: 26

Answer

There are two forces acting on the beam. The force of gravity points straight down. The tension force from the cable points straight up. Because the beam is being lowered at a steadily decreasing speed, the tension force is greater in magnitude than the force of gravity.
1509811967

Work Step by Step

There are two forces acting on the beam. The force of gravity points straight down. The tension force from the cable points straight up. Because the beam is being lowered at a steadily decreasing speed, the tension force is greater in magnitude than the force of gravity. Note that the rectangle in the free body diagram represents the beam.
Small 1509811967
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.