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MPavsic

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- I assume that vector summation of the centrifugal forces acting on the belt, on pulley A and B, equals to zero. Is Centrifugal force on pulley A static or dynamic force?
- What would, hypothetically, happen if the sum centrifugal forces acting on the belt are not zero? Could some kind of arrangement, of the belt and pulleys, be used as a propulsion system if vector summation of centrifugal forces acting on the belt on all pulleys doesn’t equal to zero?