1. The problem statement, all variables and given/known data A 2.5 kg block is on a 53 degres incline for wich Uk = 0.25 and Us = 0.5 . Find its acceleration given that (a) it is initially at rest. I don't know how to approach this. We have kinetic friction when an object slides. This object starts at rest. Does that mean that we will have both kinds of friction in this problem?