A student sits on a pivoted stool while holding a pair of weights. The stool is free to rotate about a vertical axis with negligible friction. The moment of inertia of student, weights, and stool is 5.25 kg. m². The student is set in rotation with arms outstretched, making one complete turn every 2.2 s, arms outstretched. Consider opposite of turning direction as positive.
Quiz 6 Question4
What is the initial angular velocity of the system?
Answer 1
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As he rotates, he pulls the weights inward so that a new moment of inertia of the system (student, objects, and stool) becomes 4 kg. m2. What is the new angular velocity of the system?
Answer 2
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A student sits on a pivoted stool while holding a pair of weights. The stool is free to rotate about...
Mathematics, 03.12.2020 20:10
Mathematics, 03.12.2020 20:10