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Q.

A yo-yo, arranged as shown, rests on a frictionless surface. When a force F is applied to the string, the yo-yo

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a

moves to the right and rotates counterclockwise

b

moves to the left and rotates clockwise

c

moves to the left and rotates counterclockwise

d

moves to the right and rotates clockwise

answer is B.

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Detailed Solution

As there is no friction, net force is F which is towards right. Torque due to this force about the centre of the Yo Yo will be in anticlockwise direction.

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