A horizontal disc rotates with a constant angular velocity omega=6.0rad//s about a vertical axis passing through its centre. A diameter of the disc with a velocity v^'=50cm//s which is constant relative to the disc. Find the force that the disc exerts on the body at the moment when it is located at the distance r=30cm from the rotation axis.
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it is because of relative rotation. a horizontal disc rotates with a constant
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