a semi-circular disc rests on a horizontal surface with its top flat surface hor

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A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. the coefficient of friction between semi-cricular disc and horizontal surface is i. this disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. when the disc is about to start moving, its top horizontal force will

Options:

A . remain horizontal

B . slant up towards direction of pull

C . slant down towards direction of pull

D . unpredictable

Answer: Option C

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