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A force of 500N1 is applied to a steel wire of cross-sectional area 0.2m2, The...

Physics
JAMB 2014
A force of 500N1 is applied to a steel wire of cross-sectional area 0.2m2, The tensile stress is
  • A. 2.5x104Nm-2
  • B. 1.0x102Nm-2
  • C. 1.0x103Nm-2
  • D. 2.5x103Nm-2
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Correct Answer: Option D
Explanation
\(Stress = \frac{Force}{Area}\)

\(Stress = \frac{500}{0.2} = 2500\)

= 2.5 x 103Nm-3

There is an explanation video available below.

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Explanation Video

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NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
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NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts