A thin, uniform rigid beam with mass m=15 kg and length L=1.2 m is installed as shown.
Both ends of the beam are connected to hinges and strings attached to the wall,
respectively. The strings extend horizontally, with both ends fixed to the wall and
the beam, respectively. The beam is said to receive tension on the string, gravity by
the Earth, and force due to a small hinge. Find the magnitude of the tension of the
string and the magnitude of the force the hinge exerts on the beam, respectively.