1. The problem statement, all variables and given/known data A 4.32 kg block is placed on top of a 9.16 kg block. A horizontal force of F = 66.6 N is applied to the 9.16 kg block, and the 4.32 kg block is tied to the wall. The coefficient of kinetic friction between all moving surfaces is 0.169. There is friction both between the masses and between the 9.16 kg block and the ground. The acceleration of gravity is 9.8 m/s^2. Determine Tension of string in N (see image) 2. Relevant equations ƩF = ma fs = μk*FN 3. The attempt at a solution (see attachment for free body diagrams) ƩF = ma m = 4.32 kg atop block = 0 ƩF = Fapplied - fk - T 0 = (44.274) - (7.155) - T T = 44.274 - 7.155 T = 37.119 Apparently I did something wrong somewhere, but I'm not sure where.