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Which one of the following four particles, whose displacement x and acceleration a_x are related as follows, is executing simple harmonic motion?

Options

  1. Aa _ x =+3 x
  2. Ba_x=+3 x^2
  3. Ca_x=-3 x^2
  4. Da_x=-3 x

Correct answer

D. a_x=-3 x

Step-by-step solution

The correct answer is option (D)

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