Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 9 - Exercises and Problems - Page 163: 25


We see that the gravitational force is .0812 percent as great as the force of the impact.

Work Step by Step

We first find the force due to the impulse: $F=\frac{J}{s}=\frac{1.8\times10^5}{.12}=1,500,000N$ We now find the force of gravity: $F_g=8.7 \times 140 = 1218N$ Comparing these gives the percentage, p: $ p = \frac{1218}{1,500,000}\times 100= \fbox{.0812 percent}$
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