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Engineering · Mechanical Engineering
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The semicircular half-disk A has a mass of 17.0 kg and rotates about the fixed horizontal axis at O. The uniform rod BC has a mass of 3.00 kg and moves in a vertical plane. When the radial line OB is vertical as shown the angular velocity of A is 7.00 rad/s clockwise a) Use the instantaneous center of zero velocity technique to show that at the initial moment the angular velocity of rod BC is 9.00 rad/s counterclockwise. b) Use the parallel axis theorem to show that the moment of inertia of the rod BC about ar axis through the instantaneous center of zero velocity is I 0.391 kg m c) Calculate the angular velocity of A after it has rotated 90° clockwise to the position shown by the dashed lines. Hint: Note that in this position the rod BC is not rotating, only translating. 625 mm mm mm 375 600

Unsure how to approach deals with conservation of energy

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