An 800-Kg Mass Is Hung from a 1 $\times$ 10¹¹ N/m²

question 38

Multiple Choice

An 800-kg mass is hung from a 1.5-m copper wire with a cross-sectional area of 0.35 cm².Young's modulus for copper is 1.1 $\times$ 10¹¹ N/m².How much does the wire stretch?

• A)2.56 mm
• B)2.97 mm
• C)3.14 mm
• D)3.86 mm
• E)4.13 mm

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