Only solve problem $2,$ it is based on problem $1$: Problem #$1$:

Given the fourbar linkage with lengths $($inches$)$ described below:

$\backslash$table$[[\backslash$table$[[$Link $1],[($Ground$)]],$Link $2,$Link $3,$Link $4],[4,1\mathrm{.}5,4\mathrm{.}25,3\mathrm{.}5]]$

Find the values and directions of ${}_3$&${}_4$ for ${}_2=45$ degrees, ${}_2=1ra\frac{d}{s}$ Your answers will be in degrees, & rad$/$s respectively.

Use the Graphical position analysis method and note the following:

Only consider the open circuit case.

Draw the linkage to scale using drafting tools $($e$.$g$.$ straight edge, compass, protractor$)$ to perform your graphical analysis. You may also use $2$D CAD software if preferred. $($NOT USING TOOLS WILL RESULT IN $50\%$ DEDUCTION OF POINTS$)$

Label all points and coordinate systems.

If using a scale please indicate what scale are you using.

Calculate the Grashof condition.

You may use either the Instant center method or Velocity polygon method however you must show all your work.

Problem #$2$:

For problem $1,$ if given that ${}_2=1ra\frac{d}{s^2}.$ Find ${}_3$&${}_4$ using the analytical method. Your answers will be in rad $\frac{?}{s^2}.$ please note the following:

You must show all your analytical work $($equations$,$ calcs, etc...$)$

You may use the excel template to check your work however problem will be graded on how you present your analytical work. No printed excel template will be accepted.