PHYS 201 Midterm: PHYS 201 TAMU 201Fall 11 Exam 3

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31 Jan 2019
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On the following problems show all your work. All answers must include the correct plus or minus sign and the correct units. (6 pts): a block is attached to one end of a horizontal spring and moves on a horizontal frictionless surface. A man holding a heavy object in each hand stands on a small platform that is free to rotate about a vertical axis. Initially he is standing with his arms outstretched and he and the platform are rotating with an angular velocity of 0. 600 radls. With his anns outstretched, the moment of inertia of the system (man platform + weights) is 4. 00 kg . m2. A large wheel of radius 0. 300 m is initially at rest and then starts to rotate with a constant angular acceleration of 0. 400 rad/s2 about an axle at its center. A large wheel with radius r is mounted on a frictionless axle that passes through the center of the wheel.