QUESTION 1 Which of the following is NOT a true statement? `a. The friction force does not depend on the coefficient of friction. b. The friction force is always less than 1. c. The friction force is always directed opposite to the motion, or tendency to move. "d. The magnitude of the friction force is proportional to the magnitude of the normal force. QUESTION 2 Which of the following is NOT a true statement? "a. the coefficient of friction has no units. b. the coefficient of static friction is always less than 1. "c. The coefficient of kinetic friction is equal to the ratio of the kinetic friction force to the normal force. "d. The coefficient of kinetic friction for a given pair of surfaces is always greater than the the coefficient of static friction for the same pair of surfaces. QUESTION 3 In several parts of this experiment, you will set up the apparatus as shown above and, keeping the mass in the cart constant, increase the amount of mass on the weight hanger until the cart begins to slide. If the mass of the cart is 93 g. the amount of mass placed in the cart is 196 g, the mass of the hanger is 50 g, and the amount of mass required to be placed on the hanger in order to get the cart to move is 81 g. what is the static friction force, in N, on the cart at that instant? (Hint: Complete the first two questions on your worksheet for this experiment before answering this question and the next one.)