### What minimum horsepower must a motor have

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Q. What minimum horsepower must a motor have to be able to drag a 260 box along a level floor at a speed of 1.45 if the coefficient of friction is 0.50?

Q. A 70-kg man (rad=0.25m) standing on a 10-kg disc (rad=0.4m) with his arms extended (rad=0.9m) holding a 15-kg weight in each hand. What is the rotational inertia of the man with weights?

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