4. An object moves in uniform circular motion at constant speed. The change in velocity over a short time interval x is not zero because the is constantly changing. 5. A body is in uniform circular motion at a fitted radius. As its speed increase s, the centripetal acceleration E. For high rotational speeds, the is the preferred quantity of measurement for a rotating body. F". A child is standing on a merrygoround at a park moving in uniform circular motion clockwise as seen from above. When she is due west of the centre of rotation, she steps off. She will tend to fall toward the 8. A rotating dish known as a Lazy Susan is in the centre of a table. A diner rotates the dish to bring a slice of potato within reach. The potato rotates with dish due to the force of which supplies the needed centripetal force. 9. A pilot wishes to turn an airplane to the left. This is accomplished by lowering the wing of the airplane to provide the needed centripetal force. 1i]. You are riding on a carousel, place a hall at your feet; and release the ball. The ball will move 11. In order to take advantage of Earth as a rotating frame of reference, rockets are usually launched as close to the as possible. 12. A ride at an amusement park rakes riders in a vertical circle. At one point at the top; the acceleration of a rider is exactly equal to g. The apparent weight of the rider at this point is 13. The clothoid loop minimizes the abrupt changes in apparent weight by continuously changing the of the loop. 14. A roller coaster loop is designed such that a car has the minimum possible speed at the top of the loop. Pit this point, the normal force acting on the car is 15. The speed of a hall in the game of jai alai can be as high as Matching Match each concept to its definition. Each answer may be used only once