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Q. A uniform solid disk with a mass of 24.3 kg and a radius of 0.314 m isfree to rotate about a frictionless axle.Forces of 90.0 and 125 N are applied to the disk. What is
(a) the net torque produced by the two forces?
(b) the angular acceleration of the disk?

Q. A wheel has eight spokes and a radius of 33.0 . It is mounted on a fixed axle and is spinning at 2.80 . You want to shoot a 38.0 long arrow through the wheel, parallel to this axle, without hitting any of the spokes. Assume that the arrow and the spokes are very thin and evenly spaced. What minimum speed must the arrow have?

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