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Brilli
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Homework Statement
A horizontal disc is rotating with an angular velocity w about its axis perpendicular to its plane. A small body of mass m moves with velocity v relative to the disc alog the diameter. Find the net force exerted by the disk on the body as function of radius from centre.
Homework Equations
The Attempt at a Solution
Attepmt-the velocity component perpendicular to radius is wr and its normal component is v. Thus net velocity at radius r is (v^2+(wr)^2)^(1/2).
I differentiate it wrt time but the answer comes to be wrong. Could anyone point out my mistake?