Question

Which of the following equations represents a simple harmonic motion? (\(x\) is displacement and \(a\) is acceleration)

• A. \(a = 0.9x^2\)
• B. \(a = -10x\)
• C. \(a = 100x^3\)
• D. \(a = 1.2x\)
• E. \(a^2 = 12x\)

Hint:

In SHM, the "negative sign" is just as important as the "linear x". Without the negative sign, the motion is unstable and exponential, not oscillatory.

Answer 1

The Correct Option is B