Question #106947

A flagpole weighs 53kg with a flag. The flagpole is 8.4 m long. The flagpole is attached to the wall partly at point A and partly with a horizontal line extending from the top end of the flagpole. The center of gravity of the flagpole and flag is in the bar 5.0 m from the point A. The angle between the bar and the wall is 45 degrees as the figure shows.

Determine the power of the cable.

Determine the power of the cable.

Expert's answer

Taking moment around point A for the stability of the bar,

"mg\\sin(45) \\times AB=T\\sin(45) \\times AC\\\\\n53g\\times\\sin(45)\\times 5\\times \\sin(45) \\times8.4\\\\\nT=61.89N"

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