Rotation of Rigid Body

# Rotation of Rigid Body - Rotation and Dynamics of Rigid...

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Rotation and Dynamics of Rigid Bodies 1. An airliner arrives at the terminal, and the engines are shut off. The rotor of one of the engines has an initial clockwise angular speed of 2000 rad/s. The engine rotation slows with an angular acceleration of magnitude 80.0 rad/s 2 . a. Determine the angular speed after 10.0 s b. How long does it take the rotor to come to rest? 2. An electric motor rotating a grinding wheel at 100 rev/min is switched off. With constant negative angular acceleration of magnitude 2.00 rad/s 2 . a. How long does it take the wheel to stop? b. Through how many radians does it turn while it is slowing down? 3. A merry go round is stationary. A dog is running on the ground just outside its circumference, moving with a constant angular speed of 0.75 rad/s. The dog does not change its pace when he sees what he has been looking for: a bone resting on the edge of the merry go round one third of a revolution in front of him. At the instant the dog sees the bone (t = 0), the merry go round begins to move in the direction the dog is

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Rotation of Rigid Body - Rotation and Dynamics of Rigid...

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