(Solved): Question 4 is Talking about Question 3. A material has the stress-strain behavior shown in Figure P1 ...

A material has the stress-strain behavior shown in Figure P1.2. What is the material strength at rupture? FIGURE P1:2 a. $45\mathrm{ksi}$ b $0.3\mathrm{ksi}$ c. $3\%$ d. $45\mathrm{Pa}$ e. 45 psi What is the toughness of this material mentioned in the question $2?$ Note: Toughness is equal to the area under the stress-strain curve. a. $67.5\mathrm{ksi}$ b. 675 psi c. $67.5\mathrm{lb}/{\mathrm{in}}^2$ d. $43\mathrm{psi}$