lecture17_post - Announcements 1. Tests returned today...

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Announcements 1. Tests returned today before and after class. 2. After today they can be picked up in Rm 1100. 3. If you want to look at your bubble sheet, see Prof. Chan before end of today. Note: no scantron errors in 20 years.
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The Radian • The radian is a unit of angular measure • The radian can be defined as the arc length s along a circle divided by the radius r s r 
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Average Angular Speed • The average angular speed, ω , of a rotating rigid object is the ratio of the angular displacement to the time interval fi av tt t   Unit: rad/s
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Average Angular Acceleration • The average angular acceleration of an object is defined as the ratio of the change in the angular speed to the time it takes for the object to undergo the change: fi av tt t   Unit: rad/s 2
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Relationship Between Angular and Linear Quantities • Displacements • Speeds • Accelerations • Every point on the rotating object has the
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lecture17_post - Announcements 1. Tests returned today...

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