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A centrifuge rotor rotating at 10,300 rpm is shut off and
Chapter 2, Problem 37P(choose chapter or problem)
Problem 37P
A centrifuge rotor rotating at 10,300 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 1.20 m · N. If the mass of the rotor is 4.80 kg and it can be approximated as a solid cylinder of radius 0.0710 m, through how many revolutions will the rotor turn before coming to rest, and how long will it take?
Questions & Answers
QUESTION:
Problem 37P
A centrifuge rotor rotating at 10,300 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 1.20 m · N. If the mass of the rotor is 4.80 kg and it can be approximated as a solid cylinder of radius 0.0710 m, through how many revolutions will the rotor turn before coming to rest, and how long will it take?
ANSWER:
Step 1 of 4
Consider the moment of inertia,
Substitute for , and for .