A passenger is pulling on the strap of a 16.5-kg suitcase with a force of 61.0 N. The strap makes an angle of 34.5° above the horizontal. A 37.8-N friction force opposes the motion (horizontal) of the suitcase. Determine the acceleration of the suitcase. F applied= 61.0 F gravity= 16.5 x 9.8=161.7 F friction= 37.8 Normal Force= ? Would the normal force = mg cos(34.5) After I have all the forces, what do I do to determine the acceleration?