Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

Published by Pearson
ISBN 10: 0321740904
ISBN 13: 978-0-32174-090-8

Chapter 2 - Kinematics in One Dimension - Exercises and Problems - Page 67: 62


Nicole threw the ball with a speed of 14 m/s

Work Step by Step

Since the ball passes Chad with a speed of 10 m/s on the way down, the ball had a speed of 10 m/s when it passed Chad on the way up. We can find the initial speed of the ball as: $v_0^2 = v^2-2ay$ $v_0 = \sqrt{v^2-2ay}$ $v_0 = \sqrt{(10~m/s)^2-(2)(-9.8~m/s^2)(5.0~m)}$ $v_0=14~m/s$ Nicole threw the ball with a speed of 14 m/s.
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.