I have a few vector problems that I'm unsure of. I have an answer for them but I don't know if it is correct. Please help check. Thanks. #1 A jogger runs 100m due west, then changes direction for the second leg of the run. At the end of the run she is 175m away from the starting point at an angle of 15 degree north of west. What were the direction and length of her second displacement? Use graphical techniques. My answer: Direction-33 degree North of West. #2 The displacement vectors A and B each have a magnitude of 3m. Vector B starts from the origin to the positive y direction. Vector A starts from the origin to the positive x direction (30 degrees N of E). Graphically find a) A+B; b) A-B; c) B-A; d) A-2B My Answers: a) Magnitude of 5.2 at +60 degrees. b) Magnitude of 3m at -30 degrees. c) Magnitude of 3m at +150 degrees. d) Magnitude of 5.2m at -60 degrees. I don't know if I wrote my answers correctly. Do I need to add the direction too? for example Magnitude of 5.2 at +60 degrees N of W?? #3 A quarterback takes the ball from the line of scrimmage, runs backward for 10yds. and the runs to the right parallel to the line of scrimmage for 15yds. At this point he throws a 50 yd. forward pass straight down field, perpendicular to the line of scrimmage. What is the magnitude of the football's resultant displacement? My Answer: Magnitude of the football's resultant displacement: 42.5 yds. at +70 degrees. Btw what does Magnitude of 3m mean? Magnitude of the football's resultant displacement? Magnitude just means the number right? Thanks a LOT!!