1. The problem statement, all variables and given/known data A. Refer to the sketch below to answer the next two questions. Force P (139.75 N) pulls on a crate of weight W (196 N) on a rough surface at a constant speed. The figure shows the directions of the forces that act on the crate. FN represents the normal force. The kinetic frictional force is f (63.23 N). The angle, a, is 63.1 degrees. Calculate the value of the normal force. B.Find the coefficient of kinetic friction. 2. Relevant equations (friction) f= MN Natural force= weight (N=W) 3. The attempt at a solution N=W N= 196(9.8) N= 1920.8 N 63.23= M(1920.8) M= 0.0329 Any ideas?