16650. 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)

ω2 x OQ
ω2 x OQ sin θ
ω2 x OQ cos θ
ω2 x OQ tan θ
✅ The correct answer is option A.

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