Voyager 2 used a slingshot maneuver to approach Saturn and then move off in the opposite direction.Voyager 2 approached Saturn with a velocity of 12 Kms^-1. (relative to the sun). The orbital speed of Saturn is 13 Kms&-1. The question is what was Voyager 2's speed after the slingshot encounter? (and relative to what?). So can Voayger 2's speed after the slingshot encounter be calculated using the distance between the earth and saturn?