A uniform disk with mass m = 9.27 kg and radius R = 1.42 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 343 N at the edge of the disk on the +x-axis,
2) a force 343 N at the edge of the disk on the -y-axis, and
3) a force 343 N acts at the edge of the disk at an angle ? = 39° above the -x-axis.
a) What is the magnitude of the torque on the disk about the z axis due to F1?