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28 The rotational inertia of an automobile wheel is found by hanging it on a knife-edge near the rim and allowing it to swing as

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28 The rotational inertia of an automobile wheel is found by hanging it on a knife-edge near the rim and allowing it to swing as a pendulum. About this axis, which is 15.0 in from the axis through the center of the wheel, the rotational inertia is 1.50 slug . ft2. If the wheel weighs 20.0 1b, what is the rotational inertia about the axis through the center? Ans. 0.52 slug. ft2

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