sign is hung from the wall of a building using an angled beam and a support cable. The beam (mass = 1500kg, length = 8m) is bolted to the wall and angled up at 30◦above the horizontal. The mass-less support cable is attached to the beam 2m from its far end and makes an angle of 40◦between the beam and the cable. The sign (mass = 125kg) attaches to the beam a half-meter from the far end and hangs straight down. a- What is the tension in the cable? b- How hard does the beam push inward on the wall?

sign is hung from the wall of a building using an angled beam and a support cable. The beam (mass = 1500kg, length = 8m) is bolted to the wall and angled up at 30◦above the horizontal. The mass-less support cable is attached to the beam 2m from its far end and makes an angle of 40◦between the beam and the cable. The sign (mass = 125kg) attaches to the beam a half-meter from the far end and hangs straight down. a- What is the tension in the cable? b- How hard does the beam push inward on the wall?