Question: A vector polygon for summing 2 - kN and 7 - kN forces is shown ( Figure P 4 . 4 ) . Determine (

A vector polygon for summing 2-kN and 7-kN forces is shown (Figure P4.4). Determine (a) the magnitude R of the resultant by using the law of cosines and (b) its angle of action \theta by using the law of sines.

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