1. The problem statement, all variables and given/known data 1. A childs slide is straight and inclined at 25o to the horizontal. Matthew of mass 35kg goes down the slide at a constant speed. (a) draw a diagram (b) find the magintude of normal reaction force between matt and slide. (c) Find the coefficient of friction between matt and the slide part (a) and (b) are fine i got 311N for part (b) but couldnt find (c) 2. Relevant equations F = MA F = ,U (mew) x R 3. The attempt at a solution Resolved it in direction of friction got; Fr - 35gsin25 = 35a could not do this as had two unknowns same with F = mew x 311 and F = 35a any help would be greatly appreciated!