A spring is stretched by applying a force of 3.0 N . The elastic strain energy stored by the spring is 0.04 J . Which of the following expressions gives the extension, in m , of the spring?
A.
\(\frac{2 \times 0.04}{3.0}\)
B.
\(\sqrt{\frac{2 \times 0.04}{3.0}}\)
C.
\(\sqrt{\frac{3.0}{2 \times 0.04}}\)
D.
\(\frac{3.0}{2 \times 0.04}\)
Exam No：wph11-01-que-20240112 Year：2024 Question No：3
Answer:
A
Knowledge points:
CH2 - Materials
Solution:
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