1. The problem statement, all variables and given/known data An insect crawls along the edge of a rectangular swimming pool of length 27 m and width 21 m. If it crawls from corner A to corner B in 30 minutes, (a) what is the average speed, and (b) what is the magnitude of its average velocity? 2. Relevant equations average speed = distance/total travel time average velocity = displacement/total travel time 3. The attempt at a solution I believed I figured out (a) which is 1.6m/min work for (a) 48m/30min= 1.6m/min or 2.7 cm/sec (answer in book when converted) For (b), I am having a problem possibly because I am having difficulty finding the correct displacement. I tried x2 -x1 48m-(+1.0m)= 47m displacement. I then tried maybe finding the slope which was 21/-27 and got 7/-9. I think I really messed up (b) and I cannot figure it out. Can someone please help me? The answer in the book for (b) is 1.9cm/s , but I do not know how they got that.