Problem #$3.$ Cartilage under an applied load. is deformed at a constant stress of $0\mathrm{.}5,1$ or $1\mathrm{.}5$MPa

applied to the sample.

a$.$ This is an example of what kind of behavioral response? Creep or stress$-$relaxation?

b$.$ Explain what the black line means.

c$.$ Why are there standard deviations on the samples? What does this imply?

d$.$ Calculate the instantaneous linear response at the different rates using $E=\frac{{}_o}{}$

e$.$ Calculate and compare the delayed elastic response $($between $1000$ and $2000$ s$)$ for

each sample.

f$.$ What does this mean: D and E$?$ Why does this happen in cartilage?

g$.$ Which mathematical construct is better for modeling this type of viscoelastic behavior?

h$.$ Explain the biological constituents of each mechanical component within the model

and draw it$.$