39. Consider four vectors: A=450 N , W ; B =160 N , 440 N of W ; C =800 N , E ; and D =100 N , 349 N . of E. Determine the magnitude and direction of A - B + C - D. Draw the vector polygon.
39. Consider four vectors: A=450 N , W ; B =160 N , 440 N of W ; C =800 N , E ; and D =100 N , 349 N . of E. Determine the magnitude and direction of A - B + C - D. Draw the vector polygon.
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