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ps05 - MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of...

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1 MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics Physics 8.01 Problem Set 5: Practice Problems Exam 1 Not for credit Website: http://web.mit.edu/8.01t/www/ Textbook: Young and Friedman, University Physics Twelfth Edition Oct 4/5 W05D1 Work and Energy Reading Assignment: Young and Freedman: 6.1-6.4 Oct 6/7 W05D2 Conservation of Energy Reading Assignment: Young and Freedman 7.1-7.5, 12.3, 12.6 Oct 8 W05D3 Quiz 4 Circular Motion; Group Problem Solving: Conservation of Mechanical Energy Oct 11 W06D1 Holiday No Class Oct 12 Class Exam One Review Students from all sections are welcome to come to any class. Exam One Tuesday Oct 12 7:30-9:30 pm (See announcements page for rooms) Oct 13/14 W06D2 Simple Harmonic Oscillator Reading Assignment: Young and Freedman: 13.1-13.5 Oct 15 W06D3 No Class Week Six Reading Questions are posted on the daily webpage for Oct 13/14 (W6D2)
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2 Problem 1: A coin of mass m (which you may treat as a point object) lies on a turntable, exactly at the rim, a distance R from the center. The turntable turns at constant angular speed ! and the coin rides without slipping. Suppose the coefficient of static friction between the turntable and the coin is given by μ . Let g be the gravitational constant. What is the maximum angular speed ! max such that the coin does not slip? Problem 2 A small ball of mass m is suspended by a string of length l . The string makes an angle ! with the vertical. The ball revolves in a circle with an unknown
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