If $$x,$$ $$v$$ and $$a$$ denote the displacement, the velocity and the acceleration of a particle executing simple harmonic motion of time period $$T,$$ then, which of the following does not change with time?
- A$$aT/x$$
- B$$aT + 2\pi v$$
- C$$aT/v$$
- D$${a^2}{T^2} + 4{\pi ^2}{v^2}$$
✓ Correct answer: A
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