A rigid uniform horizontal bar of mass m1 = 80.00 kg and length L = 5.200 m is supported by two vertical massless strings. String A is attached at a distance d = 1.400 m from the left end of the bar and is connected to the top plate. String B is attached to the left end of the bar and is connected to the floor. An object of mass m2 = 3500 kg is supported by the crane at a distance x = 5.000 m from the left end of the bar.
Throughout this problem, positive torque is counterclockwise. Use 9.81 m/s^2 for the magnitude of the acceleration due to gravity. Find the tension in the first string.