Problem $1(20$ points$)$:

Calculate the mobility of the linkages shown below. $($Hint: two of the mechanisms have $1$DoF, one has zero, and one has three$)$

a$.)$

b$.)$

c$.)$

d$.)$

Problem $2(10$ points$)$:

Draw a kinematic diagram of each mechanism below, label the links and joints, and determine the mobility.

rrodiem $9(20$ points$)$:

Build one of the mechanisms from problem $1$ using SolidWorks $($select proportional dimensions$)$ to confirm its mobility. Upload a screen shot of the finished assembly. $($don$\text{'}$t upload SolidWorks files$)$

Problem $4(10$ points$)$:

Take a picture of a real mechanism comprised of $5$ or more links $($that is$,$ do not take a picture of a picture, but of an actual mechanism$).$ Upload the picture as a separate file. Sketch the kinematic diagram and determine its mobility on engineering paper.

Suggested sources of mechanisms for this include gym equipment, car hood hinges $($ignore springs$),$ excavation equipment $($but not identical to the bobcat above$),$ Lazy$-$boy$-$type chairs.... please be creative and find something interesting.