A massless, rigid support beam (L = 2.00 m) is attached to a hinge by its left end. At a distance r = 1.30 m, a steel cable is attached to the beam at a 40°angle---at the right end of the beam, a lamp(m = 4.00 kg) is suspended. Assuming the system is in equilibrium, what is the tension in the steel cable holding the support beam?

A massless, rigid support beam (L = 2.00 m) is attached to a hinge by its left end. At a distance r = 1.30 m, a steel cable is attached to the beam at a 40°angle---at the right end of the beam, a lamp(m = 4.00 kg) is suspended. Assuming the system is in equilibrium, what is the tension in the steel cable holding the support beam?