velocity^2 x crank radius

velocity x crank radius

(velocity/crank radius)

velocity x crank radius^2

along the angular velocity

opposite to angular velocity

may be any one of these

perpendicular to angular velocity

quick return mechanism of shaper

four bar chain mechanism

slider crank mechanism

(a) and (c) above

slider-crank mechanism

velocity polygon

acceleration polygon

four bar chain mechanism

inner dead centre

outer dead centre

right angles to the link of the stroke

all of the above