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Modulus of elasticity of a material is t...

Modulus of elasticity of a material is the ratio of stress and strain.
One end of a rope of length `4.5 m` and diameter `6 mm` is fixed to the branch of a tree.A monkey weighing `100 N` jumps to catch the free end and stays there.Find the elongation of the rope.(Young's modulus=`4.8×10^11 N/m^2`).

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A steel rod has a radius of 10 mm and a length of 1.0 m.A 100 kN force stretches it along its length. Calculate the elongation of the steel rod. [Young's modulus of steel is 2.0×10^11N/m^2 ]

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