Which one of the following equations of motion represents simple harmonic motion ?

Which one of the following equations of motion represent simple harmonic motion?

Which one of the following equations of motion represent simple harmonic motion? Where k, k_(0), k_(1) and a are positive.

Which one of the following equation at the repressents simple harmonic motion ?

As the expression in ivolving sine function , which of the following equations does not represent a simple harmonic motion ?

As the expression in ivolving sine function , which of the following equations does not represent a simple harmonic motion ?

Which of the following equation does not represent a simple harmonic motion

Which of the following equation does not represent a simple harmonic motion

Which of the following expressions does not represent simple harmonic motion