Two ice skaters, lilly and john, face each other while at rest, and then push against each other's hands. the mass of john is twice that of lilly. how do their speeds compare after they push off? lilly's speed is one-fourth of john's speed. lilly's speed is the same as john's speed. lilly's speed is two times john's speed. lilly's speed is four times john's speed. lilly's speed is one-half of john's speed.