A cantilever beam of span 2 m carries a uniformly distributed load (UDL) of 1 kN/m run over a length of 1.5 m from the free end. Calculate the shear force at the fixed end of the beam.

A helical spring has a stiffness of 12 kN/m with 20 turns. If it is cut into two equal parts of 10 turns each and then connected in series, the stiffness of the resulting spring combination is:

A circular shaft is subjected to a bending moment of 600 N·m and a torque of 800 N·m. Its equivalent bending moment is: