1. The problem statement, all variables and given/known data A block is at rest on the incline (32 degrees from the horizontal). The coefficients of static and kinetic friction are Us=0.73 and Uk=0.62 respectively. The acceleration of gravity is 9.8 m/s^2. What is the frictional force acting on the 39 kg mass? PART 2: What is the largest angle which the incline can have so that the mass does not slide down the incline? 2. Relevant equations force of friction = (Uk) Fn force of friction = (Us) Fn 3. The attempt at a solution My initial thought was that the frictional force would be 0 because the block is at rest? I have no idea how to start part 2 either. Please help if you can!