For an aircraft carrier, its towbar is positioned by means of a pneumatic or hydraulic cylinder connected by a 25-mm-diameter steel rod to two identical arm-and-wheel units at link DEF. Assuming that the mass of the whole system, which is the tow bar is 200 kg, and its center of gravitational acceleration is located at point G. For the initial position shown at the figure, determine the average normal stress in the cylinder rod CD.

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A: step 1-

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Q: y 7 cm 9 cm 21 kN 15 kN 5 cm 18 kN

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Q: a 3 m long cantilever beam (i.e., a beam fixed at one end) that carries a 500 kg concentrated point…

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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.