Angular momentum. A record of mass M, radius R, and thickness H is rotated by a 5N force at its edge. The piviot point is through the center, so the moment of inertia is MR?. a) What is the angular acceleration of the disk about its center? b) After 10 seconds of applied force, what is the angular speed (rad/sec) of the disk? (answer in terms of M, R) c) If M = 180 g and R = 15 cm, what is the speed found in part b? d) If a 30g blob of silly putty falls on the record at a radial distance 6 cm, what is the new angular speed of the record? Assume no external torques.
Angular momentum. A record of mass M, radius R, and thickness H is rotated by a 5N force at its edge. The piviot point is through the center, so the moment of inertia is MR?. a) What is the angular acceleration of the disk about its center? b) After 10 seconds of applied force, what is the angular speed (rad/sec) of the disk? (answer in terms of M, R) c) If M = 180 g and R = 15 cm, what is the speed found in part b? d) If a 30g blob of silly putty falls on the record at a radial distance 6 cm, what is the new angular speed of the record? Assume no external torques.
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The class I'm taking is physics for scientists and engineers!
I need help with parts C and D only!
I am completely stuck. Need help. I have attached the problem. Please view attachment before answering. If you can please explain your answer so I can fully understand. Thank you so much!
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