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veronicak5678
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Homework Statement
A solid wheel (I = 1/2 MR^2) initially rotating at 5 rad/s comes to a stop after 8 rotations.
a) Angular acceleration?
b) Tangential accelration at the rim?
c) If the mass is 2 kg and the radius is 1.5 m, find the net torque.
d) Using values form c, how much energy was required to bring the wheel to a stop?
Homework Equations
The Attempt at a Solution
a) -24.9 rad/s^2
b) -37.4 m/s^2
c) -56 Nm
d) I am not sure how to find the energy used.