PROBLEM 2.9 To steady a sign as it is being lowered, two cables are attached to the sign at A. Using trigonometry and knowing that α=25°, determine (a) the required magnitude of the force Pif the resultant Rof the two forces applied at Ais to be vertical, (
This is the end of the preview.
access the rest of the document.
Law Of Cosines,
Law of sines, triangle rule, corresponding magnitude, required magnitude