Q69 / 75 · JEE Main 2025 (4 Apr Shift 1) · Physics
If $\overrightarrow{\mathrm{L}}$ and $\overrightarrow{\mathrm{P}}$ represent the angular momentum and linear momentum respectively of a particle of mass ' m ' having position vector $\overrightarrow{\mathrm{r}}=\mathrm{a}(\hat{\mathrm{i}} \cos \omega \mathrm{t}+\hat{\mathrm{j}} \sin \omega \mathrm{t})$. The direction of force is
- Correct answerAOpposite to the direction of $\vec{r}$
- BOpposite to the direction of $\overrightarrow{\mathrm{L}}$
- COpposite to the direction of $\vec{P}$
- DOpposite to the direction of $\overrightarrow{\mathrm{L}} \times \overrightarrow{\mathrm{P}}$
Solution
$\overrightarrow{\mathrm{a}}=-\omega^2 \overrightarrow{\mathrm{r}}$
$\therefore \overrightarrow{\mathrm{F}}$ opposite to $\overrightarrow{\mathrm{r}}-$
$\therefore \overrightarrow{\mathrm{F}}$ opposite to $\overrightarrow{\mathrm{r}}-$
Hence, the correct answer is option: 'A'.