1. The problem statement, all variables and given/known data An iceskater weighing 69kg is gliding up an incline hill at 20 degrees. How high up does the skater make it when her initial velocity is 8,9m/s and the friction between her skates and the ice is 0,97N. 2. Relevant equations mg(y) = m*g*cos(20) mg(x) = m*g*sin(20) 3. The attempt at a solution F(friction) = [itex]\mu[/itex] * mg(y) F[itex]\rightarrow[/itex] = F(f) + F(mg(x)) a=F[itex]\div[/itex]M[itex]\rightarrow[/itex]F[itex]\div[/itex]m=232,7[itex]\div[/itex]69 = 3,34m/s^2 s = (v^2 - v(o)^2) / 2a = 11,8m sin(20)*11,8=4,05...[itex]\approx[/itex] 4,1m the answer should be 4,0m. What am I doing wrong?