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Simple Harmonic Motion — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsSimple Harmonic Motion1 Mark
MCQ
Which of the following quantities are always zero in a simple harmonic motion?
  • A
    $\overrightarrow{\text{F}}\times\overrightarrow{\text{a}}$
  • B
    $\overrightarrow{\text{v}}\times\overrightarrow{\text{r}}$
  • C
    $\overrightarrow{\text{a}}\times\overrightarrow{\text{r}}$
  • ✓
    All of the above
✓

Answer

Correct option: D.
All of the above
As $\overrightarrow{\text{F}},\overrightarrow{\text{a}},\overrightarrow{\text{r}}$ and $\overrightarrow{\text{v}}$ are either parallel or anti-parallel to each other, their cross products will always be zero.

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