A traffic light hangs from a pole as shown in Fig. 9-55.
Chapter 9, Problem 21(choose chapter or problem)
A traffic light hangs from a pole as shown in Fig. 9-55. The uniform aluminum pole AB is 7.50m long and has a mass of 0 kg. The mass of the traffic light is 21.5 kg. Determine(a)the tension in the horizontal massless cable CD. and (b) the vertical and horizontal components of the force exerted by the pivot A on the aluminum pole.
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