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PHYSICS

JAMB 2014 - Question 16

Physics 2014 JAMB Past Questions - Question 16: A force of 500N is applied to a steel wire of cross sectional area 0.2m-² the tensile stress iis

Choose the correct answers from the options given.

A force of 500N is applied to a steel wire of cross sectional area 0.2m-² the tensile stress iis

A: 1.0x10-²Nm

B: 1.0x10-³Nm

C: 2.5x10-³Nm

D: 2.5x10-³Nm

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Correct Answer

Explanation

To calculate the tensile stress, we can use the formula:

Stress = Force / Area

Given that the force applied is 500 N and the cross-sectional area is 0.2 m², we can substitute these values into the formula:

Stress = 500 N / 0.2 m²

Calculating this, we find:

Stress = 2500 N/m²

Therefore, the tensile stress on the steel wire is 2500 N/m².