1. The problem statement, all variables and given/known data Boat moving at 2.8 m/s [fwd] relative to water (VBW) Tourists walking on deck at 1.1 m/s relative to deck (VPB) Determine their velocity relative to the water if they are walking towards the starboard (right side of ship). 2. Relevant equations VPW = VPB + VBW 3. The attempt at a solution VPW = 1.1 m/s [R] + 2.8 m/s [fwd] VPB = 1.1 m/s: x-dir = 0 and y-dir = 1.1 m/s VBW = 2.8 m/s: x-dir = 2.8 m/s and y-dir = 0 VPW = ??: x-dir 2.8 m/s y-dir = 1.1 m/s So do I just draw a graph? Like, 2.8 in magnitude along the positive x-axis, and then 1.1 in magnitude up (or how would I think about this? like how would I know where to draw the vectors and which direction etc. in a more complicated question?) and just c = sqrt(a2 + b2) c = 3.01 m/s VPW = 3.01 m/s Then how do I find the direction of VPW? [tan-1(1.1/2.8)] = [E 21.45 N] or [21.45 N of the horizontal] or what? since the question doesn't use direction Also, how many significant digits should I leave my answers to (both velocity and direction)?