A 20-M Long Steel Wire (Cross-Section 1

question 9

Multiple Choice

A 20-m long steel wire (cross-section 1.0 cm², Young's modulus 2.0 × 10¹¹ N/m²) , is subjected to a load of 25 000 N. How much will the wire stretch under the load?

• A)0.25 cm
• B)2.5 cm
• C)12.5 cm
• D)25 cm
• E)1.25 cm

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