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A uniform disk with mass m = 9.11 kg and radius R = 1.37 m lies...

A uniform disk with mass m = 9.11 kg and radius R = 1.37 m lies in the x-y plane and centered at the origin. Three forces act in the +y-direction on the disk:

1) a force 319 N at the edge of the disk on the +x-axis, 2) a force 319 N at the edge of the disk on the –y-axis, and 3) a force 319 N acts at the edge of the disk at an angle θ = 32° above the –x-axis.

Q1)What is the magnitude of the angular acceleration about the z axis of the disk?

Q2)If the disk starts from rest, what is the rotational energy of the disk after the forces have been applied for t = 1.5 s?

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