A 4-M-Long I-Beam (Of Uniform Shape) Having a Mass of 48

Multiple Choice

A 4-m-long I-beam (of uniform shape) having a mass of 48 kg is held at a 35º angle above the floor by a bracket attached to its end. The bracket is securely bolted to the floor. The torque that the bracket must provide to hold the I-beam in place is

A) 540 Nm.
B) 770 Nm.
C) 610 Nm.
D) 660 Nm.