1. The problem statement, all variables and given/known data A 10.0-kg mass is placed on a 25.0o degree incline and friction keeps it from sliding. The coefficient of static friction in this case is 0.580, and the coefficient of sliding friction is 0.520. The mass is given a shove causing it to slide down the incline. 2. Relevant equations What is the frictional force while the mass is sliding? 3. The attempt at a solution This is all I have so far, but I don't exactly understand it: Frictional force while the mass is sliding = μmgcosθ = 0.52 X 10 X 9.8 X cos 25 = 46.19 N I need a full step-by-step explanation, if possible. I'll also take any other information about the problem that may make it easier. Thank you.