Two beetles run across flat sand, starting at the same point. beetle 1 runs 0.50 m due east, then 0.80 m at 30° north of due east. beetle 2 also makes two runs; the first is 1.6 m at 40° east of due north. what must be (a) the magnitude and (b) the direction of its second run if it is to end up at the new location of beetle 1?