Well, that formula was the only one I could find among my materials that deals with the eccentricity of the orbit and the velocity of the asteroid. As far as the r goes, because asteroid A is in a circular orbit (therefore a=r), for a collision to occur in the first place, the r of asteroid B...
Homework Statement
If there are two asteroids A and B of equal mass (and density of 3000kg/m^3), with the same semi major axis of a=2.2 AU with asteroid A having a circular orbit and no inclination, and asteroid B has an elliptical orbit with an eccentricity of e=0.05 and an inclination of...