11 Gravity Kepler’s Laws Newton’s Law of Gravity

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Presentation transcript:

11 Gravity Kepler’s Laws Newton’s Law of Gravity Gravitational Potential Energy The Gravitational Field Hk: 25, 33, 41, 47, 71.

Kepler’s Laws

Newton’s Law of Gravitation

Universal Law of Gravity all matter is weakly attracted attraction is inverse-square with distance G = 6.67x10-11 N·m2/kg2 Example: Two 100kg persons stand 1.0m apart

Gravitational Potential Energy

g vs G G is universal g ~ Mass and Radius

Summary Kepler’s Laws Newton’s Law of Gravity Gravitational Potential Energy The Gravitational Field /

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