8. Centripetal Forces & Gravitation
Overview of Kepler's Laws
6:12 minutes
Problem 13a
Textbook Question
Textbook QuestionThe solar system is 25,000 light years from the center of our Milky Way galaxy. One light year is the distance light travels in one year at a speed of 3.0 x 10⁸ m/s . Astronomers have determined that the solar system is orbiting the center of the galaxy at a speed of 230 km/s . (b) Our solar system was formed roughly 5 billion years ago. How many orbits has it completed?
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