Which of the following quantities are always negative in a simple harmonic motion?

If overset(vec)(F) is force vector, overset(vec)(v) is velocity , overset(vec)(a) is acceleration vector and overset(vec)(r) vector is displacement vector w.r.t. mean position than which of the following quantities are always non-negative in a simple harmonic motion along a straight line ?

If overset(vec)(F) is force vector, overset(vec)(v) is velocity , overset(vec)(a) is acceleration vector and overset(vec)(r) vector is displacement vector w.r.t. mean position than which of the following quantities are always non-negative in a simple harmonic motion along a straight line ?

Which of the following quantities are always positive in a simple harmonic motion?

Which of the following quantities are always positive in a simple harmonic motion?

Which of the following quantities are always positive in a simple harmonic motion?

Which of the following quantities is/are always non-negative in a simple harmonic motion along a straight line?

Which of the following quantities is/are always non-negative in a simple harmonic motion along a straight line?

Which of the following quantities are always zero in a simple harmonic motion?

Which of the following quantities are always zero in a simple harmonic motion?