Exam-style question
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A spring has a spring constant of 200 N/m and is extended by 0.5 m. Calculate the elastic potential energy stored in the spring.
Model answer
What a good answer should say
- The elastic potential energy stored in the spring is 25 J.
Explanation
Why this works
This question tests the ability to apply the formula for elastic potential energy. The calculation involves substituting the given values into the formula and performing the necessary arithmetic to find the energy stored in the spring.
Common mistake
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