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3.The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose)

A. ω² × OQ

B. ω² × OQ sinθ

C. ω² × OQ cosθ

D. ω² × OQ tanθ

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Correct Answer : A.


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