Question

On a smooth horizontal circular plate a bead of mass 'm' tied to a string, the
other end of which passes through a hole at the centre 'O' of plate, moves with
certain angular velocity. The string is pulled further to bring the radius to one
fourth of its initial value. Then
(A) Tension increases
(B) Tension decrease
(C) Speed increase
(D) Angular velocity increase​

Answer 1

Explanation:

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