$2\mathrm{.}1$ Problem $1\mathrm{.}222\mathrm{.}1$ Problem $1\mathrm{.}22$

a$.$ Determine if the linkage in Figure $19$ meets the Grashof condition. If it

does, which link can make a full revolution?

b$.$ Also answer the following: Is this mechanism in the open or crossed

configuration? How can you tell? How does it affect the motion of the

mechanism?

c$.$ Build the mechanism in working model, demonstrate using your model

either that it has a link that can rotate $360$ deg, or if not, the limiting angles

of the input link.

a$.$ Determine if the linkage in Figure $19$ meets the Grashof condition. If it

does, which link can make a full revolution?

b$.$ Also answer the following: Is this mechanism in the open or crossed

configuration? How can you tell? How does it affect the motion of the

mechanism?

c$.$ Build the mechanism in working model, demonstrate using your model

either that it has a link that can rotate $360$ deg, or if not, the limiting angles

of the input link.