College Physics (7th Edition)

Published by Pearson
ISBN 10: 0-32160-183-1
ISBN 13: 978-0-32160-183-4

Chapter 4 - Force and Motion - Learning Path Questions and Exercises - Exercises - Page 137: 51


The tensions beginning from upper most wires are 69N each, 20N for wire AB, 57N each, and 98N.

Work Step by Step

For part of below most wire, $T_{2}=\frac{mg}{2cos30^{\circ}}=\frac{10\times9.8}{2cos30^{\circ}}=57N$ For upper most part, $T_{1}=\frac{mg}{sin45^{\circ}}=69N$ $T_{AB}=69cos45^{\circ}-57sin30^{\circ}=20N$ And finally $T=mg=98N$
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.