A woman at an airport is towing her 15.0 kg suitcase at constant speed by pulling on a strap at an angle 9 above the horizontal (see Figure). She pulls on the strap with a 31.5 N force, and the friction force on the suitcase is 20.0 N. l ' ' . '- .' CD (a) Draw a free-body diagram of the suitcase. Choisir le lichier aucun chier selectionn IMG_0373.joeg Score: 0.2 out of 0.2 Comment: (b) What angle does the strap make with the horizontal (in degrees)? 50.536 y (c) What is the magnitude of the normal force that the ground exerts on the suitcase {in N)? 171.? x Look carefully at your free body diagram and note that the net force in the vertical direction must be zero. N (d) What If? If the woman still pulls on the strap with a 31.5 N force but wishes to accelerate the suitcase at a rate of 0.500 m/sz, at what angle (in degrees) must she pull on the strap? Assume that the rolling friction is independent of the angle of the strap. :1\" (e) What is the maximum acceleration of the suitcase if the woman can exert a maximum force of 31.5 N? [Enter the magnitude in mfsz.)