A-LevelPhysicsDeformation of solids9702/12 · May/June 2021 · Q201 Mark
Two guitar strings are stretched by tensile forces. String X is stretched by a tensile force F that causes an extension x. String Y is stretched by a tensile force 2F that causes an extension 2x. The strings obey Hooke's law. What is the ratio strain energy in stretched string X / strain energy in stretched string Y?
A4
B2
C1/2
D1/4
✓ Correct answer
D: 1/4
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