Question 1 [1 point] The diagram below illustrates a car travelling with a constant speed around a curve in the road. The curve is banked. Which force represents the direction of the net force acting on the car? Question 2 (1 point) A passenger on a Ferris wheel of diameter 22 m makes one complete revolution every 45 s. What is the passenger's centripetal acceleration? a) 0.21 m/s2 O b) 0.068 m/s2 O c) 0.43 m/s2 O d) 19 m /5 2 Oe) 13 m/ 52Question 3 [1 point] The reason that curves on roads are often banked is because 0 a] the coefficient of kinetic friction is increased 0 b} a component of the normal force can contribute to the centripetal force 0 C} the coefficient of static friction is increased 0 d} the normal force acting on the car is reduced 0 E} the gravitational force acting on the car is reduced Question 4 (1 point) If the radius of an object undergoing circular motion is decreased yet the Fc must be kept constant, then the speed must a) decrease ( b) there is insufficient information to determine what the speed should do O c) increase O d) be kept the sameQuestion 5 (1 point) The diagram below shows a rock on the end of a string being whirled around in a circle in the horizontal plane. The motion is viewed from above and the stone is rotating clockwise. What are the directions associated with its instantaneous velocity and instantaneous acceleration, respectively? Z W+ +E O a) east, west b) west, west O c) south, south O d) south, east O e) south, westQuestion 6 (1 point) An object moves with a speed of 2.4 m/s in a circle of radius 1.6 m. Its centripetal acceleration is O a) 1.5 m/52 ( b) 3.6 m/52 O c) 9.2 m / 52 d) 7.4 m/s 2 ( e) 0.94 m/52