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

Answer

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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