1. The problem statement, all variables and given/known data Run a trial with an angle of 28 degrees so the block is in translation equilibrium. Show how to calculate the mu_k value. http://www.lon-capa.org/~mmp/applist/si/plane.htm 2. Relevant equations F_fk = mu_k * F_n 3. The attempt at a solution I have solved for Normal force and the frictional force and plugged them into the equation to get the coefficient of friction, I get roughly 0.53. However, on the site given above, to get it in rough equilibrium, the mu_k is 0.44 while the mu_s is roughly 0.53 Just wondering, if an object is in equilibrium, are both coefficients the same?