A 1.5-kg cart is pulled with a force of 7.3 N at an angle of 40 above the horizontal. If a kinetic friction force of 3.2 N acts against the motion, the cart's acceleration along the horizontal surface will be a. 5.0 m/s2 d. 1.6 m/s2 b. 2.7 m/s2 e. 1.0 m/s2 c. 2.4 m/s2