1. The problem statement, all variables and given/known data This is from Larson's Calculus Early Transcendentals 4th Ed (Pg. 786) A 600-pound boat sits on a ramp imclined at 30 degrees, as shown in Figure 11.32. What force is required to keep the boat from rolling down the ramp? 2. Relevant equations The solution gives the following equation: w1 = projvF = [(F * v) / ||v||2] = (F * v)v 3. The attempt at a solution This is just an example in the book, and I'm confused about how the author did the last two steps in the previous equation. I think it's just one of those omissions where it's really simple, but I can't figure out why the length of the vector squared can just disappear.