Question: The three forces (magnitudes 100 lb, 200 lb, and P) combine to produce a resultant R (Figure P4.9). The three forces act in known directions,
The three forces (magnitudes 100 lb, 200 lb, and P) combine to produce a resultant R (Figure P4.9). The three forces act in known directions, but the numerical value P is unknown.
(a) What should the magnitude of P be so that the resultant is as small as possible?
(b) For that value, what angle does the resultant make relative to the positive x-axis?
Figure P4.9
200 lb 100 lb 60 40 P
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