An electric turntable 0.790 m in diameter is rotating about a fixed axis with an initial angular velocity of 0.300 rev/s. The angular acceleration is 0.913 rev/s². 2a. Write a complete list of knowns and unknowns, and use them to label a diagram that illustrates the system. 2b. Compute the angular velocity after 0.192 s. 2c. Through how many revolutions has the blade turned in this time interval? 2d. What is the tangential speed of a point on the tip of the blade at that time (0.192 s)? 2e. What is the magnitude of the resultant acceleration of a point on the tip of the blade at that time?
An electric turntable 0.790 m in diameter is rotating about a fixed axis with an initial angular velocity of 0.300 rev/s. The angular acceleration is 0.913 rev/s². 2a. Write a complete list of knowns and unknowns, and use them to label a diagram that illustrates the system. 2b. Compute the angular velocity after 0.192 s. 2c. Through how many revolutions has the blade turned in this time interval? 2d. What is the tangential speed of a point on the tip of the blade at that time (0.192 s)? 2e. What is the magnitude of the resultant acceleration of a point on the tip of the blade at that time?
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Transcribed Image Text:An electric turntable 0.790 m in diameter is rotating about a fixed axis with an
initial angular velocity of 0.300 rev/s. The angular acceleration is 0.913 rev/s².
2a. Write a complete list of knowns and unknowns, and use them to label a diagram that illustrates
the system.
2b. Compute the angular velocity after 0.192 s.
2c. Through how many revolutions has the blade turned in this time interval?
2d. What is the tangential speed of a point on the tip of the blade at that time (0.192 s)?
2e. What is the magnitude of the resultant acceleration of a point on the tip of the blade at that
time?
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