Using a motor, a moment can be applied on the OA bar and it is expected that, through control the value of that moment at each instant of time, the mechanism moves with w constant of $20$ rpm $,$ rotating the OA bar evenly throughout the travel.

The characteristics of the bars are known, being $\backslash ($ O A $\backslash )$ of $\backslash (1\backslash$mathrm$\{$~kg$\},\backslash$mathrm$\{$AB$\}\backslash )$ of $4$ kg and $\backslash ($ B C $\backslash )$ of $0\mathrm{.}5$ kg $.$ In addition, they can be considered as thin rods to estimate their moment of inertia.

$-$ Plot the path followed by point B $($a y$-$x plot of the path that makes B$).$

$-$ Plot the Moment the engine should do during a turn of the mechanism $($a graph M vs time$).$

$-$ Plot the reactions on pins A and B$,$ presenting these reactions in your component parallel to $\backslash ($ A $\backslash$bar$\{$B$\}\backslash )$ and component perpendicular to $\backslash (\backslash$overline$\{$A B$\}\backslash )$ for one turn of the mechanism. $(4$ graphs Force vs Time$)$