A woman with mass 50kg is standing on the rim of a large disk that is rotating at 0.80 rev/s about an axis through its center. The disk has mass 130 kg and radius 4.0m.(a) Calculate the magnitude of the total angular momentum of the woman disk system. (Assume that you can treat the woman as a point.)

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nah.   i'm just sleepy.

490 n

f=125n a=2.5m/s2