# Homework Help: Kepler's equation of planetary motion

1. May 11, 2010

### roshan2004

1. The problem statement, all variables and given/known data
If a planet were suddenly stopped in it's orbit, supposed circular, Show that it would fall into the sun in a time which is$$\frac{\sqrt{2}}{8}$$ times it's time period.

2. Relevant equations
Kepler's Third law

3. The attempt at a solution

Last edited: May 11, 2010
2. May 11, 2010

### nickjer

You do know we don't solve the problem for you. You need to put some effort into it first and we guide you in the right direction.