15992. 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) September 13, 2025 by Admin ω(r1 – r2)sin θ ω(r1 + r2)sinθ sec2θ ω(r1 – r2)cos θ ω(r1 + r2)cos θ cosec2 ✅ The correct answer is option B.