1. The problem statement, all variables and given/known data A clerk moves a box of cans down an aisle by pulling on a strap attached to the box. The clerk pulls with a force of 190.0 N at an angle of 28° with the horizontal. The box has a mass of 37 kg, and the coefficient of kinetic friction between the box and the floor is 0.45. Find the acceleration of the box. 2. Relevant equations Ff=U*Fn 3. The attempt at a solution I tried solving this three times. I found x and y components: X:167.8N Y:89.2N Tried to find the Fn: cos(28)89.2= 78.8N Ff=.45(78.8) Ff=35.5N Fa=190-35.5N= 154.6N 154.6N=37a a=4.2N I also tried subtracting the force parallel by the force applied and got the wrong acceleration also. Am I finding the Force Normal wrong? Some direction would be great thanks.