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# ω rad/sec is the angular velocity of a crank whose radius is r. If it makes θ° with inner dead centre and obliquity of the connecting rod l is , the velocity v of the piston, is given by the equation

ω2 (l cos + r sin tan θ)

ω2 (l sin + r cos φ tan θ)

ω (l sin + r cos tan θ)

ω2 (l sin - r cos θ tan )

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