Problem # 3: The boom AC is a 4-in square steel tube with a wall thickness of 0.25 inch. The boom is supported by the 0.5-in diameter pin at A, and the 0.375-in diameter cable BC. The working stresses are 25 ksi for the normal stress in the cable, 18 ksi for the axial stress in the boom, and 13.6 ksi for shear in the pin. Neglecting the weight of the boom, determine the largest safe load P that can be applied as shown. ( 20 % )

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Cables

Cables are collections of wires, alternatively referred to as a cord, connector, or plug. They are one or more wires covered in a plastic covering that allows for the transmission of power or data between devices. The earliest use of recognizable electrical cable was the early commercialized telegraph lines. These were iron-made and tedious to produce and install cabling.