5.2 - MasteringPhysics: Assignment Print View

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Ch5_2 Due: 10:00pm on Wednesday, September 29, 2010 Note: You will receive no credit for late submissions. To learn more, read your instructor's Grading Policy [ Switch to Standard Assignment View] You should make a serious attempt at these problems before your September 29 workshop. You only have a couple of hours after the work shop to make final adjustments before the due time !! You will do poorly in the work shop if you are unprepared. !! If you need help consult the Help Blog and/or visit the help room. Problem 6.21 As a roller coaster car crosses the top of a 60 -diameter loop-the-loop, its apparent weight is the same as its true weight. Part A What is the car's speed at the top? Express your answer using two significant figures. ANSWER: 24 Correct Problem 6.41 A 400 ball swings in a vertical circle at the end of a 1.4-m-long string. When the ball is at the bottom of the circle, the tension in the string is 12 . Part A What is the speed of the ball at that point? Express your answer using two significant figures.
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5.2 - MasteringPhysics: Assignment Print View

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