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A flywheel (a uniform solid cylinder of radius 0.25 m and mass 80 kg) is initially...

A flywheel (a uniform solid cylinder of radius 0.25 m and mass 80 kg) is initially at rest, but free to rotate about the axis through its center. A belt wrapped around it is pulled off horizontally, providing a tangential force of 45 N to the outer rim of the flywheel for 2.00 s. Calculate the final kinetic energy of the wheel.

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Torque on the flywheel is (45N) (0.25m) -11.25N.m The rotational impulse on the wheel is, (11.25N.m)(200s) -22.5 J.s The chan

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