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circuscircus
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Homework Statement
A 20kg loudspeaker is suspended 2 m below the ceiling by two 3m long cables that angle outward at equal angles. What is the tension in the cables?
Homework Equations
The Attempt at a Solution
cos theta = 2/3, theta=48.2 degrees
w=mg=20kg * 9.8m/s^2 = 196N
But the answer is 147N