In a compound helical spring, the inner spring is arranged within an concentric with the outer one, but is 7 mm shorter in length. The outer spring has 12 coils of mea diameter 30 mm and the wire diameter is 3-5 mm. (i) Find the stiffness of the inner spring if an axial load of 150 N causes the outer spring compress by 20 mm. (ii) If the radial clearance between the springs is 1-5 mm, find the wire diameter of ta inner spring, if it has 10 coils. Take: C = 77000 N/mm?.

Q: solution incorrect resolve again

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Q: resolve solution

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The column is described as a vertical member of the structure that carries an axial compressive load, and buckling is a lateral deformation of the column under the application of load.