1.An HSS 10×8×3?16 is used as a compression member with one end pinned and the other end fixed against rotation but free to translate. The length is 12 feet. Compute the nominal compressive strength for A500 Grade B steel (Fy = 46 ksi). Use K = 2.0 and LRFD. You are welcome but not required to use the AISC Column Tables or RISA 3D to verify your results.
2.A block with an inclination of 20 degrees has a weight of 60kg, a height of 1.8m and width 1m, static friction is 0.3, what is the force needed and the height (where the force in the box should be) to pish it upwards