A hoop of radius r and mass m rotating with an angular velocity ω_0 is placed on a rough horizontal surface
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A hoop of radius r and mass m rotating with an angular velocity ω0 is placed on a rough horizontal surface. The initial velocity of the centre of the hoop is zero. What will be the velocity of the centre of the hoop when it ceases to slip?

(A) rω

(B) rω0/4

(C) rω0/3

(D) rω0/2

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Best Answer

The velocity of the centre of the hoop, when it ceases to slip is 0/2.

So, The correct option of this question is (D).

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