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A small body having mass 1kg is rotating in a circle of radius 10cm. It is connected to the centre with the help of a string having young's modulus = 1011N/m2. Find change in length of wire while the mass is rotating with constant speed of 2m/s. The cross sectional area of string is 1cm2.

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MCQs on solids elastic behaviour, stress and strain mechanical properties, hookes law, stress-strain curve, elastic moduli and materials elastic behaviour.


A small body having mass 1kg is rotating in a circle of radius 10cm. It is connected to the centre with the help of a string having young's modulus = 10<sup>11</sup>N/m<sup>2</sup>. Find change in length of wire while the mass is rotating with constant speed of 2m/s. The cross sectional area of string is 1cm<sup>2</sup>.






 
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