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(Solved): A ceiling fan consists of a small cylindrical disk with 5 thin rods coming from the center. The di ...
A ceiling fan consists of a small cylindrical disk with 5 thin rods coming from the center. The disk has mass md = 3.2 kg and radius R = 0.26 m. The rods each have mass mr = 1.4 kg and length L = 0.88 m.
1) What is the moment of inertia of each rod about the axis of rotation?
2.)What is the moment of inertia of the disk about the axis of rotation?
3.)What is the moment of inertia of the whole ceiling fan?
4.)When the fan is turned on, it takes t = 3 s and a total of 12 revolutions to accelerate up to its full speed. What is the magnitude of the angular acceleration?
5.)What is the final angular speed of the fan?
6.)What is the final rotational energy of the fan?
Expert Answer
Given: md=3.2kg R=0.26m mr=1.4kg L=0.88m The objective of the question is to find (1) the moment of inertia of each rod about the axis of rotation (2)