Problem 231 A force P passing through points A and B in Fig. P-231 has a clockwise moment of 300 ft-lb about O. Compute the value of P.

Solution 231

$d = \frac{6}{\sqrt{5}} \, \text{ ft}$

Moment at point O $M_O = Pd$

$300 = P(\frac{6}{\sqrt{5}})$

$P = 50\sqrt{5} \, \text{ lb}$ down to the right from A to B answer

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