Chapter 7, Problem 121P

The cable supports three 400-lb loads as shown. If the maximum allowable tension in the cable is 900 lb, find the smallest possible sag hC at C.

The cable AOB weighs 24 N/m. Determine the sag H and the maximum tension in the cable.

Replace the parallel force system acting on the plate by a resultant force and specify its location on the x-z plane. Solution: R = -10 kN, z = 1.4 m, x = 1 m %3D 0.5 m

A 50-m steel surveying tape has a mass of 1.6 kg. If the tape is stretched between two points at the same elevation and pulled until the tension at each end is 60 N, determine the horizontal distance between the ends of the tape. Neglect the elongation of the tape due to the tension.

Resolve the 360-lb force into components along the cable AB and AC. Use a = 60° and B = 40°

Show the solution.

Q-4: 1.9 m B Two cables are used to secure the 2.5 m overhang boom in position and support the 8000 N load. If the resultant force is directed along the boom from point A towards 0, determine the magnitudes of the resultant force and forces Fg and FB Fc. Set x = 3.5 m and z = 3.9 m. FC 6.2 m 8000 N

The table can be lifted without tilting by applying the 100-N force at point O, the center of the table. Determine the force-couple system with the force acting at corner A that will produce the same result.

4. Wet concrete exerts a pressure distribution along the wall of the form. Determine the resultant force of this distribution and specify the height h where the bracing strut should be placed so that it lies through the line of action of the resultant force. The wall has a width of 5 m. Cp = (4z) kPa