Solve the problem using the vector form v = 
[(cos ?)i + (sin ?)j].A 250-lb sign is hanging from the end of a hinged boom, supported by a cable inclined at 49° with the horizontal. Find the tension in the cable and the compression in the boom rounded to the nearest pound. 
A. Cable: 217-lb tension; boom: 331-lb compression
B. Cable: 381-lb tension; boom: 288-lb compression
C. Cable: 288-lb tension; boom: 381-lb compression
D. Cable: 331-lb tension; boom 217-lb compression
Answer: D
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