Physics 9A-C Quiz week #9 Name: 5/27/2011 ID(last 4): A meter stick with a mass of 0.160 kg is pivoted about one end so it can rotate without friction about a horizontal axis. The moment of inertia for a stick rotated about the center of mass is Â cm = 1 12 m 2 and the moment about the end is Â p = 1 3 m 2 . The meter stick is held in a horizontal position and released. As it swings through the vertical, calculate: a) ( 3 pts) the change in gravitational potential energy of the stick; Gravity acts at the center of mass. The work done by gravity is - Î U cm . The potenial energy of the meter stick will be least when it is vertical, at which point, the center of mass will have lowered by 0.5 m õ
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This note was uploaded on 09/28/2011 for the course PHY 9A taught by Professor Svoboda during the Spring '08 term at UC Davis.