1.A polystyrene rod consisting of two cylindrical portions AB and BC is restrained at both ends and supports two 6-kip loads as shown. Knowing that E = 0.45 X 106 psi, determine (a) the reactions at A and C, (b) the normal stress in each portion of the rod.
2.Convert following quantities to equivalent quantities in SI units indicated, report answers in 3 significant digits.
A. 171.0 slugs/in^3 to Gg/m^3
B. 60mph to m/s
C. 32.2ft/s^2 to m/s^2