Fundamentals of Physics Extended (10th Edition)

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

Chapter 5 - Force and Motion-I - Problems: 29a



Work Step by Step

The firefighter weighs 712N, which means that Fg = mg = 712N and the mass of the firefighter is 72.7kg. If there were no pole, the firefighter would accelerate at 9.81 $m/s^2$ since this is the acceleration due to gravity. Since he is only traveling at 3.00$m/s^2$, the pole must be accounting for the additional 9.81-3.00 = 6.81 $m/s^2$. Then since F=ma, we have F = (72.7kg)(6.81 $m/s^2$) = 495N
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.