You throw a Frisbee of mass m and radius r so that it is spinning about a horizontal axis perpendicular to the plane of the Frisbee. Ignoring air resistance, the torque exerted about its center of mass by gravity is
◦ 0.
◦ mgr.
◦ 2mgr.
◦ a function of the angular velocity.
◦ small at first, then increasing as the Frisbee loses the torque given it by your hand.