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My steps are stucked as below

3 T cos @ = 400, T = tension of each spring, @ = angle of spring with vertical axis

L sin @ = 0.5

L cos @ = h

tan @ = 0.5/h

with L = length of spring

T = 1000 times x where x is the stretch length

3000x cos @ = 400

x = L - 0.5

3000 (L-0.5) cos @ = 400

3000 (h) - 1500 cos @ = 400

3000 (h) = 400 + 1500 cos @

h = (400 + 1500 cos @) / 3000

and the I don't know how...

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# Expert please help me solve this question,

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