Asked by fei
a traffic light is supported by a cable that makes ang angle of 7 degree w/ the horizontal on each side of weight. what is the maximum safe weight of the light if the maximum safe tension in the cable 1200N
Answers
Answered by
drwls
Draw a free body diagram. Apply a vertical force balance. If the cable is at the breaking point tension,
2*1200*sin7 = M*g
Solve for M, in kg
M = 30 kg
2*1200*sin7 = M*g
Solve for M, in kg
M = 30 kg
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