Physics Help

Question 1 (1 point) A passenger on a Ferris wheel of diameter 22 m makes one complete revolution every 45 5. What is the passenger's centripetal acceleration? O a) 0.43 m/52 O b) 0. 21 m/5 2 O c) 0.068 m/s2 O d) 19 m / 5 2 Oe) 13 m/ 52 Question 2 (1 point) A child whirls a ball around in circles on the end of a 48 cm long string at a frequency of 2.5 Hz. What is the ball's centripetal acceleration? O a) 38 m/52 O b) 1.2 * 102 m/52 O ) 1.2 x 104 m/52 O d ) 47 m / 5 2 O e) 3.0 m / 52Question 3 (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? F F, . Fs a) FA (b) F2 OC F1 O d ) F3 Oel F5 Question 4 (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) 9.2 m/52 O b) 7.4 m /52 O c) 3.6 m/ 52 O d) 1.5 m/ 52 O el 0.94 m/5 2Question 5 {1 point] For an object travelling with \"uniform circular motion," its acceleration is O a] directed tangent to the circle 0 bl zero because the speed is constant 0 Cl changing in magnitude depending on its position in the circle 0 [ll directed outward from the centre of the circle 0 El directed toward the centre of the circle Question 15 {1 point] If the radius of an object undergoing circular motion is decreased yet the Fc must be kept constant, then the speed must 0 a] be kept the same 0 bl increase 0 Cl there is insufficient information to determine what the speed should do 0 E\" decrease