The velocity of piston in a reciprocating steam engine is given by (where ω = A

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Question

The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank)

Options:

A . ωr [sin θ + (sin 2θ/n)]

B . ωr [cos θ + (cos 2θ/n)]

C . ω²r [sin θ + (sin 2θ/n)]

D . ω²r [cos θ + (cos 2θ/n)]

Answer: Option A

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