Explorations An Introduction to Astronomy |

Explorations An Introduction to Astronomy, 3/e

Thomas T. Arny

Gravity and Motion

Gravity and Motion	79
2.1Solving the Problem of Astronomical Motion	80
2.2Inertia	80
2.3Orbital Motion and Gravity	82
2.4Newton's Second Law of Motion	83
Acceleration	83
Mass	84
2.5The Law of Gravity	85
2.6Newton's Third Law	85
2.7Measuring a Body's Mass Using Orbital Motion	86
2.8Surface Gravity	88
2.9Escape Velocity	90

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