Tarzan is in the path of a pack of stampeding elephants when Jane swings in to the rescue on a rope vine, hauling him off to safety. The length of the vine 25 m, and Jane starts her swing by the rope horizontal. If Jane's mass is 54kg, and Tarzan's mass is 82kg, to what height above the ground will the pair swing after she rescues him? (Suppose the rope is vertical when she grabs him.)