1
Q
What is Keplers first law
A
all of the planets move in eliptical orbits with the sun at one focus
2
Q
What is Keplers second law
A
The radius vector (imaginary line between the sun and the planet) sweeps out equal areas in equal times
3
Q
What is Keplers third law
A
The square of the period of a planets orbit is directly proportional to the cube of its mean distance from the sun
4
Q
What is the expression for centripetal force
A
mv^3/r
5
Q
A
