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

A. ω². (r₁ r₂). (1 - cos² θ)

B. ω². (r₁ + r₂). (1 + cos² θ)

C. ω². (r₁ + r₂). [(2 - cos² θ)/cos³ θ]

D. ω². (r₁ - r₂). (1 - sin² θ)

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