1. The problem statement, all variables and given/known data If you exert 28N of horizontal force while pushing a 10.2 kg box across the surface of a floor at constant velocity, then what is the kinetic friction coefficient between floor and the box? 2. Relevant equations EF = ma Ffk = uK * Fn 3. The attempt at a solution Fg = 10.2 * -9.8 = -100 = 100 = FN Ef = ma 28N + Ffk = 10.2 * 0 m/s^2 (constant velocity) Ffk = -28N uk = -28/100 = -.28 coefficient is this correct?