University Physics with Modern Physics (14th Edition)

Published by Pearson
ISBN 10: 0321973615
ISBN 13: 978-0-32197-361-0

Chapter 2 - Motion Along a Straight Line - Problems - Exercises - Page 62: 2.58

Answer

The rock will fall 49.8 meters.

Work Step by Step

As an object falls freely, the acceleration is $9.80~m/s^2$. We can write this as $9.80~\frac{(m/s)}{s}$. That is, each second, the velocity increases by 9.8 m/s. As the rock fell, the average velocity was $\frac{40.0~m}{1.00~s}$ which is 40.0 m/s. During the next 1.00-second time interval, the average velocity will increase by 9.80 m/s. Therefore, the rock will fall 49.8 m during the next 1.00 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.