Theory of Machine
In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO. The acceleration of the piston P with respect to the crank-pin C is given by

ω² × CN
ω² × CO
ω² × NO
ω² × QN

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Theory of Machine
Angle of dwell of cam is defined as the angle

During which the follower returns to its initial position
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position
Through which the cam rotates during the period in which the follower remains in the highest position
Of rotation of the cam for definite displacement of the follower

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