lecture18_post - Announcements 1. HW8 due March 17 (after...

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Announcements 1. HW8 due March 17 (after spring break) . 2. Week of March 16 and 18 (after spring break) Prof. Detweiler will give lectures Profs. Chan and Hirschfeld will not hold office hours during that week
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Last time: rotational motion s r t t measured in rad “” in rad/s “” in rad/s 2 angle angular velocity angular acceleration
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t v t v t v directions of tangential velocity v t and angular frequency Right Hand Rule Angular velocity is a vector out of screen R V t R V t magnitude
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A 0.5 kg ball that is tied to the end of a 1.5-m light cord is revolved in a horizontal plane, with the cord making a 30 deg angle with the vertical. a) Determine the ball’s speed b) Now the ball is revolved so that it’s speed is 4.0 m/s. What angle does the cord make with the vertical? Example: horizontal circle (from HW!)
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t a c a • The tangential component of the acceleration is due to changing speed • The centripetal component
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This note was uploaded on 09/07/2011 for the course PHY 2053 taught by Professor Buchler during the Spring '06 term at University of Florida.

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lecture18_post - Announcements 1. HW8 due March 17 (after...

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