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If there is a mass of 0.19 kg on the left side of the pulley. What is the mass needed on the other side of the pulley for it to move?
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is it less than .19 kg
Depends on your system. If there's no friction between the pulley and it's pin, then a mass less than 0.19 kg or a mass greater than 0.19 kg will cause the masses to move, and the pulley to rotate. If there is friction between the pulley & pin, you will calculate the mass required to overcome the frictional force, and add/subtract from 0.19 kg.
can be less and greater
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