To steady a sign as it is being lowered, two cables are attached to the sign at
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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 P if the resultant R of the two forces applied at A is to be vertical,
(b) The corresponding magnitude of R.
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00 360 N
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