3.3.8 A car for carrying coal is resting on an inclined plane as shown in Figure 3.18. The weight of the car and coal is represented by the 500-lb force going through C. (a) Determine the tension T necessary to hold the car. (b) What is the reaction at the wheels? Let 0 = 20° and h = 1 ft. Figure 3.18 2 ft 500 lb 10A\ 1.5 ft B 1.5 ft T

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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.