The steel bars AC and BC, each of cross-sectional area 120 mm2, are joined at C with a pin. Determine the displacement of point C caused by the 15-kN load. Use E =200 GPa for steel.

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British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.