A light uniform tapering conical wire is made from a material of Young's modulus Y and...

 

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A light uniform tapering conical wire is made from a material of Young's modulus Y and has length L. The radii, at the upper and lower ends of this conical wire, have values R and 3R, respectively. The upper end of the wire is fixed to a rigid support and a mass M is suspended from its lower end. In equilibrium the length of this wire would be equal to (A) 2 Mg 9 TYR? (B) A light uniform tapering conical wire is made from a material of Young's modulus Y and has length L. The radii, at the upper and lower ends of this conical wire, have values R and 3R, respectively. The upper end of the wire is fixed to a rigid support and a mass M is suspended from its lower end. In equilibrium the length of this wire would be equal to (A) 2 Mg 9 TYR? (B)