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borobeauty66
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Homework Statement
A rotating disk of radius 2.0m (the mass on the disk, assume is negliable) with 4 points of mass each spaced 90 degrees apart from each other, each weighing 19kg. Each is position 0.2m from the axle.
Inertia of the disk is 3.04 kg m^2
Angular Speed is 310 rad/s
Torque is initially at 0 Nm, as no force is acting upon it.
A frictional force is then applied to the rim, of 94 N. How long does it take to come to a complete stop?
Homework Equations
I assume F x r = torque
But after this, I'm not sure where to go.
The Attempt at a Solution
Not sure where to begin