(Solution) - A horizontal disc rotates with a constant angular velocity 969 -(2025 Original AI-Free Solution)

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A horizontal disc rotates with a constant angular velocity ? = 6.0 rad/s about a vertical axis passing through its centre. A small body of mass m = 0.50 kg moves along a diameter of the disc with a velocity v' = 50 cm/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 = 30 cm from the rotation axis.