1. The problem statement, all variables and given/known data A block is sent sliding up a 50 degree ramp at an initial speed of 9m/s. The coefficient of kinetic friction between the ramp and the block is 0.51. Find the acceleration of the block. 2. Relevant equations Fk = (Fn)uk F=ma 3. The attempt at a solution umgsin50 = ma ugsin50 = a 0.51(-9.8)sin50 = a a = -3.829 Which is far from the right answer.