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Physics, 26.11.2019 01:31 sunflowergirl6664

There is a girl pushing on a large stone sphere. the sphere has a mass of 8200 kgand a radius of 90 cm and floats with nearly zero friction on a thin layer of pressurized water. suppose that she pushes on the sphere tangent to its surface with a steady force of f = 30n and that the pressured water provides a frictionless support.

1) how long will it take her to rotate the sphere one time, starting from rest?

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