A constant torque of 21.4 nbullm is applied to a grindstone, Ask an Expert

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Q. A constant torque of 21.4 N•m is applied to a grindstone whose moment of inertia is 0.125 kg•m2. Using energy principles, determine the angular speed (in revolutions per second) after the grindstone has made 19 revolutions. (Avoid friction.) Do not enter units.

Q. A worker pushed a 27 kg block 11.6 m along a level floor at constant speed with a force directed 34° below the horizontal.

If the coefficient of kinetic friction is 0.20, how much work was done by the worker's force?

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Category:- Physics
Reference No.:- M9358224

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