A large wooden turntable in the shape of a flat uniform disk has a radius of 2.0 m and a total mass of 120 kg. The turntable is initially rotating at 3.0 rad/s about a vertical axis through its center. a.If one applies a constantforce tangentially to the edge of the turntable, one can slow down and eventually stop the turntable. What magnitude of such a force (constant) should be applied tostop the turntable in 30.0 seconds? b.While the turntable is rotating at 3.0 rad/s, if a 70.0 kg parachutist makes a soft landing on the turntable at a point near the outer edge. Find the angular speed of the turntable after the parachutist lands. (you can treat the parachutist as point particle.)

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