The linear velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by

• A. ω(r1-r2)sinθ
• B. ω(r1-r2)cosθ
• C. ωr1+r2)sinθsec2θ
• D. ω(r1+r2)cosθcosec2θ