Required information

The flywheel $OD$ on the elliptical machine analyzed in the case study for this chapter has a constant angular velocity of

$5\mathrm{.}500ra\frac{d}{s}$ clockwise. Note that bar ABD is one solid rigid body connected to bar EBF at point $B.$ The $x$ and $y$ locations of

each point, expressed in inches, are provided in the table, where the reference origin is at point $O.$ Note that both point $O$

and $H$ are fixed points, and $A$ is a roller that can move in the horizontal plane. Consider $=180$ as shown in the figure.

Determine the velocity and acceleration of the roller $A.$

The velocity is

in$/$s $i.$