2. Part I: Place the letter of the correct answer in the space provided at the end. (13 marks) 1. What are the magnitudes of the parallel and perpendicular components of the gravitational force acting on the box shown in the diagram? Fperpendicular 40.9 N Fparrallel (A) 36.8 N (B) 40.9 N 36.8 N 361 N 401 N (D) 401 N 361 N 55.0 kg What is the normal force in the diagram? (A) 0.60 N (B) 50 N (C) 55 N (D) 60 N 42.0 FA = 5.0 N 5.6 kg 3. A 15.0 kg box is resting on a horizontal surface with an applied force, F, as shown. What is the magnitude of the normal force acting on the box? (A) 11.0 N (B) 15.0 N (C) 143 N (D) 147 N F F = 4.00 N y 15.0 kg F = 3.00 N x 4. What is the magnitude of the net force acting on the object below if the object is moving D horizontally? F = 155 N (A) 44 N A (B) 82 N (C) 110 N (D) 130 N Team Sant to note F F = 45N 55 15.0 kg ON 5. A box is pulled on a smooth horizontal frictionless floor with a force of 100 N at 37.0 above the horizontal. If the mass of the box is 40.0 kg, what is the normal force on the box? (A) 292 N (B) 312 N (C) 332 N (D) 392 N 6. The free body diagram shown represents an object sliding down a rough incline. Which vector represents the gravitational force? FA F (A) F1 (B) F2 01(C) F3 (D) F4 F FA 7. A block of mass m slides down a frictionless plane inclined at an angle, 0, with the horizontal. What is the normal force exerted by the plane on the block? (A) mg (B) 2mg (C) mg cos(0) (D) mg sin(0)