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Unformatted text preview: PHY 3221: Mechanics I Fall Term 2009 Exam 1, September 23 2009 • This is a closed book exam lasting 50 minutes. • There are two problems worth a total of 20 pts. Begin each problem on a fresh sheet of paper. Use only one side of the paper. Avoid microscopic handwriting. • Put your name, the problem number and the page number in the upper right-hand corner of each sheet. • To receive partial credit you must explain what you are doing. Carefully labelled figures are important! Randomly scrawled equations are not helpful. • Draw a box around important results (or at least results which you think might be im- portant). • Good luck! 1 Problem 1. Kickoffs in “The Swamp”. [10 pts] (a) [2 pts] You decide to impress your non-physics friends on campus and claim that without studying any game film of the Gator football team, you can determine how hard its kickers can kick a football. Looking up their stats on the internet, you find out that last year the Gators were averaging L yards on their kickoffs which ended in a fair catch. Using this information alone, de-yards on their kickoffs which ended in a fair catch....
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- Spring '08