Exam-style question
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In simple harmonic motion (SHM), the acceleration of an object is directly proportional to its displacement from the equilibrium position. What is the relationship between acceleration (a), displacement (x), and the constant (k)?.
- A.a = -kx
- B.a = kx
- C.a = k/x
- D.a = -k/x
Model answer
What a good answer should say
- a = -kx
Explanation
Why this works
The correct relationship is a = -kx, which shows that acceleration is proportional to displacement and directed towards the equilibrium position, indicating restoring force in SHM.
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