A yo-yo-shaped device mounted on a horizontal frictionless axis is used to lift a 30 kg box
Question:
A yo-yo-shaped device mounted on a horizontal frictionless axis is used to lift a 30 kg box as shown in Figure. The outer radius R of the device is 0.50 m, and the radius r of the hub is 0.20 m. When a constant horizontal force Fappof magnitude 140 N is applied to a rope wrapped around the outside of the device, the box, which is suspended from a rope wrapped around the Rigid mount hub, has an upward acceleration of magnitude 0.80 m/s2. What is the rotational inertia of the device about its axis of rotation?
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Step by Step Answer:
Let T be the tension on the rope From Newtons second law we have Tm...View the full answer
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Related Book For 
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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