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Question 1 A yo-yo-shaped device mounted on a horizontal frictionless axis is used to lift a 28 kg box as shown in the figure. The outer radius R of the device is 1.1 m, and the radius r of the hub is 0.49 m When a constant horizontal force Fapp of magnitude 190 N is applied to a rope wrapped around the outside of the device, the box, which is suspended from a rope wrapped around the hub, has an upward acceleration of magnitude 0.93 m/s2. What is the rotational inertia of the device about its axis of rotation? Rigid mount Hub Yo-yo shaped device Rope Number Units the tolerance is +/-296

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on the e ne 300 ,44 N e cting on TFapp R TR ol 0.93 C.49 092s = 32.55

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