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A potter's wheel is a uniform solid disk of diameter 0.72m and a mass of 60kg. the wheel is initially spinning at a rate of 85 rev/min. and the potter wants to bring it down to 45 rev/min with her hands within 15 revolutions.
A) what is moment of inertia of the disk?
B) what is angular acceleration that wil bring down the rotational speed under the states conditions?
C) what minimum total friction force must tthe potter supply to the disk if her hands are acting at the edge of the disk?
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A crate of eggs is located in the middle of the flat bed of a pickup truck as the truck negotiates a curve in the flat road, how fast can the truck be moving without the crate sliding
A spring stretches 0.150 when a 0.300 kg mass is hung from it. The spring is then stretched horizontally 0.100m from its equlibirum point and released. determine maximum acceleration of mass
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