Essential University Physics: Volume 1 (3rd Edition)

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

Chapter 8 - For Thought and Discussion - Page 141: 2


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Work Step by Step

G is the gravitational constant in the equation for the gravitational force, so it is the same no matter where in the earth a person is. However, g is an approximation of $\frac{Gm_{planet}}{r_{planet}}$ that makes calculations faster, so it changes based on which planet a person is on. Also, g is an acceleration, making it a vector, while G is a scalar.
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