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Unformatted text preview: direction for increasing angle. (a) When is the angular velocity largest? Explain. (b) When is the angular acceleration negative? Explain. (c) When is the angular displacement largest? Explain. 4. For circular motion, the velocity of the object is v = r . Find this equation in your textbook. How is r increased in the eld event Hay discusses? How is increased? 5. A cyclist rides in circles on a level parking lot. What type of force (gravity, normal, friction, . ..) provides the centripetal acceleration? From what perspective is a centrifugal force involved? Warmup Questions Submit answers by 11:00 p.m. Monday October 17. 1. Warmup question for October 18. In baseball, why does a curveball curve? 2. Warmup question for October 20. How do athletes in extreme sports like skateboarding and BMX get so high? 1 F 1 F 2 F 3 F 4 2 3...
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