The steel structure is composed of a hollow tube with an outer diameter of 10 in. and a wall thickness of 0.5 in. Take ft and The steel has a uniaxial yield strength of 36 ksi. If the load F0 2500 lb, determine the factor of safety for yielding at the base, assuming a von Mises yield criterion.

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.