Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 7 - Linear Momentum - Problems: 6

Answer

14000 kg.

Work Step by Step

The momentum in the horizontal direction will be conserved. Let the positive direction be the direction in which the boxcar was originally moving. $$(7700 kg)(14 m/s) + (M)(0 m/s) = (7700 kg + M)(5.0 m/s)$$ Solve for M=14000 kg, rounded to 2 significant figures.
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.