Answer to Question #304440 in Classical Mechanics for Precious

Question #304440

The energy stored in a copper wire of cross sectional area 0.5mm² is 0.04J. calculate the force applied to it if its length is 2m. Take young modulus of copper as 1.2×10¹¹Nm^-2.

Expert's answer

"F=\\sqrt{2kA}=\\sqrt{\\frac{2ESA}l}=49~N."

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