A woman at an airport is towing her 19.0kg suitcase at constant speed by pulling on a strap at an angle 9 above the horizontal. She pulls on the strap with a 32.5-N force, and the friction force on the suitcase is 20.0 N. (a) Draw a free-body diagram of the suitcase. (Submit a le with a maximum size of 1 MB.) Choose File No le chosen (b) What angle does the strap make with the horizontal? counterclockwise from the horizontal (c) What is the magnitude of the normal force that the ground exerts on the suitcase? N