1. The problem statement, all variables and given/known data Consider the downhill skier shown at the right (just a picture of a skier, no info given in picture). The skier has a mass of 77kg and is traveling at 45mph. Neglecting friction and drag, calculate the skier's acceleration. Explain and justify any measurements, assumptions, approximations you make. 2. Relevant equations F=ma 3. The attempt at a solution I've tried a number of different things. I started with a free body diagram, showing F1 moving down and to the right, w pointing straight down, and N pointing perpendicular to F1. I then put an x y axes with the x axis running along F1 and the y axis along N, with W now pointing down and to the right. I broke W into components, which didn't seem to help as I don't have enough info. y |N | |_______ x |\ F1 | \ W Wy | \ |_(\ <--- called this angle theta Wx To do that I did Cos(theta)=Wx/W so W(cos theta) = Wx and similary sin(theta)=Wy/W so W(sin theta)=Wy x | y +F1 | +N +W(costheta)| -w(sintheta) I can find that N = W(sin theta) by doing Fynet = may ay = 0 so Fynet = 0 N - W(sintheta) = 0 N = W(sintheta) To solve for Fxnet all I can get is Fxnet = may F1+W(cos theta)=max so (F1+W(costheta))=ax As you can see I'm pretty confused, I don't feel like that's the right answer and that I'm missing something.