A string of area of cross-section 4 mm 2 and length 0.5 is connected with a rigid body of mass 2 kg. The body is rotated in a vertical circular path of radius 0.5 m. The body acquires a speed of 5 m/s at the bottom of the circular path. Strain produced in the string when the body is at the bottom of the circle is ...... x 10 -5 . (Use Young's modulus 10 11 N/m 2 and g=10 m/s 2 )
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Strain = F/AY
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