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A 14.5 kg mass fastened to the end of a ...

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^-1` at the bottom of the circle. The cross sectional area of the wire is `0.065 cm^2`. Calculate the elongation of the wire when the mass is at the lowest point of its path.

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The correct Answer is:
`1.539 times 10^-4 m`
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