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A 20-kg loudspeaker is suspended 2.0 m below the ceiling by two

ropes that are each 30? from vertical.

Find the value of T, the magnitude of the tension in

either of the ropes.

Express your answer in newtons.

T=

Suppose that the loudspeaker in the problem had a mass of 500 kg

and the ropes hung 20? from the vertical. Into which of the

following intervals would you expect T to fall? You do not

have to calculate Texactly to answer this question; just

make an estimate.

500 to 1000 N 1000 to 2000 N 2000 to 4000 N 4000 to 8000 N 8000 to 16,000 N

Edit
Added Tue, 05 Jul '16
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the vertical component of both the tension inrope should be

equal to weight of speaker .

so 2Tcos(30)=20*9.8

T=(10/0.866)*9.8

T=113.092N

Edit
Added Tue, 05 Jul '16
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