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mechanical engineering theory of machines
1. The velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by (where ω = Angular velocity of the cam shaft)
(A): ω(r1 + r2)cos θ cosec2 θ
(B): ω(r1 + r2)sinθ sec2θ
(C): ω(r1 - r2)cos θ
(D): ω(r1 - r2)sin θ
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