A 100-Kg Nonuniform Boom That Is 6

question 42

Multiple Choice

A 100-kg nonuniform boom that is 6.0 m long is loosely pinned at the pivot at P.A 600-kg concrete block is suspended from the end of the boom at A,as shown in the figure.The boom forms a 30° angle above the horizontal,and is supported by a 4.0-m cable between points D and B.Point B is 4.0 m from P,and point D is 4.0 m above P.The center of mass of the boom is at point C,which is 2.0 m from P.Assume that all the quantities shown in the figure are accurate to two significant figures.What is the tension in the cable connected between points B and D?

• A)9,300 N
• B)8,400 N
• C)8,100 N
• D)7,500 N
• E)6,900 N

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