8. The diagram below shows a merry-go-round. There are two rows of horses. The angular speed of the outer row is found to be 2.0 rad/sec. r, = 3.0 m r, = 5.0 m

Which of the following is not an example of an object:  a. A car is rounding a bend at a constant speed. b. A merry-go-round increases from rest to a constant rotational speed.  c. A pendulum swings back and forth. d. A bowling ball rolls down a bowling alley.

39. John observes a ball of radius 0. 0300 m rolling along a horizontal table at a constant linear speed of 5.20 m/s. If John observes the ball roll off the edge and fall a distance of 6.10 m vertically before hitting the floor. While the ball is in the air, what is the angular displacement John would observe? А. 19.3 rad В. No answer is correct C. 22.6rad D. 11.8 rad Е. 14.9 rad

4. This grapn shows the angular velocity of a spinming wheel. HOW many rotaions does the wheel make during the 20 seconds represented on the graph? o (rad/s) 60F 50 40 30 20 10 2 1(s) 4 6 8 10 12 14 16 18 20 2.