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crazuiee
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Homework Statement
The Milky Way galaxy (including the sun) rotates about its center with a period of 200 million years. The sun is approx. 2 X 10^20m from the center of the galaxy. What is:
A) The radial acceleration of the sun?
B) What is the net gravitational force on the Sun due to other stars in the Milky Way Galaxy?
Homework Equations
v=2(pi)(r)/period
a=v^2/r
I just can't get my head around the 1 revolution per 200million years. How would I work that into a velocity? And then into an acceleration?