Problem $1.$

Given: $4000$ psi average normal stress in specimen $($the specimen is the $2"1"$

segment$)$ shown

a$)$ Determine force $P$

b$)$ Given $E=1,700$ksi, calculate the axial strain, $$

c$)$ Calculate the axial elongation $($in inches$)$ of the specimen, given that the

specimen length is $12$

d$)$ Calculate the average shear stress in section a$-$a$.$