Elliptical Orbit Homework: Find Angular Momentum

[missnuss]

Homework Statement

A comet of mass 5x10^16 kg moves in an elliptical orbit around the sun, with the sun at one focus. At the perihelion, 10^6 m, the comet has a linear velocity of 1.5x10^7 m/s. Find the angular momentum of the comet with respect to a focus at the sun.

Homework Equations

The Attempt at a Solution

Ya, I have nothing except 0<e<1, Vmin<E<0

 

[SammyS]

How about: What's the definition of angular momentum?

 

[missnuss]

Ok. So basically you multiply the three together? Sorry if I am slow.

 

[SammyS]

Ok. So basically you multiply the three together? Sorry if I am slow.

Yes. -- I mean yes to multiplying them together.

I have no idea about you're being slow or not.