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What is the elongation of the wire when a 14.5 kg mass, fastened to the end of a steel wire of unstretched length 1.0 m, is whirled in a vertical circle with an angular velocity of 2 rev/s at the bottom of the circle, given that the cross-sectional area of the wire is 0.065 cm²?

Options

  1. A1.87~ ~ 10 ⁻³ m
  2. B1.87~ ~ 10 ⁻⁴ m
  3. C1.87~ ~ 10 ⁻⁵ m
  4. D1.87~ ~ 10 ⁻² m

Correct answer

A. 1.87~ ~ 10 ⁻³ m

Step-by-step solution

Correct Option is : (A) 1.87~ ~ 10 ⁻³ m

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