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Understanding Rigid Body F=ma & Fixed Axis Rotation

This example demonstrates the crucial principle of rigid body dynamics through identical drums with hanging weights and applied forces. Calculate cord tension (T1), drum acceleration (a), and understand the mechanics involved.

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Understanding Rigid Body F=ma & Fixed Axis Rotation

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  1. Rigid Body F=ma Fixed Axis Rot’n: Example 1 This example illustrates a very important principle that you must understand. Two identical 20 lb drums are shown below. A cable wraps around each. From one cable hangs a 10 lb weight B. A 10 lb force is applied to the other. Please determine: (a) The tension in the cord for case 1; (b) The a’s for the drums in both cases. Before working this, think about it. Do you think T1 = 10 lbs? Do you think thea’s are the same?

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