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Rotation 032224 by zed santos is a document available to read on EtoBox.

Here are the solutions to the 3 problems: 1) Tension before brake = mg Tension after brake = mg - P Given: Weight = 100 lb = 445 N Brake force P = 100 lb Tension before brake = 445 N Tension after brake = 445 - 100 = 345 N 2) Let T = tension in cord Weight B = mg mg - T = 0 T = mg Given: Weight B = ? N (not given, so omit this step) T = mg 3) Moment of inertia I = (1/3)mL^2 = (1/3)(490 N)(3 m)^2 = 980 kg-m^2

Author

zed santos

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EN