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September 4, 2015

Homework Help: Physics / Dynamics

Posted by Kyle on Friday, April 11, 2008 at 8:49pm.

After the fuel is turned off, the rotor of a jet engine decelerates under the action of air friction, which depends on the square of its speed, and constant bearing friction. Thus the deceleration is written as b + c * w^2, where b and c are constants and w is the angular velocity of the rotor. Determine the time t required for the rotor to come to rest from a speed w_0.

Thanks in advance.

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