A particle starting from rest, moves in a circle of radius $r$. It attains a velocity of $\mathrm{V}_{0} \;\mathrm{m} / \mathrm{s}$ in the $\mathrm{n}^{\text {th }}$ round. Its angular acceleration will be
A particle starting from rest, moves in a circle of radius $r$. It attains a velocity of $\mathrm{V}_{0} \;\mathrm{m} / \mathrm{s}$ in the $\mathrm{n}^{\text {th }}$ round. Its angular acceleration will be
- [NEET 2019]
- A
$\frac{\mathrm{V}_{0}}{\mathrm{n}}\; \mathrm{rad} / \mathrm{s}^{2}$
- B
$\frac{\mathrm{V}_{0}^{2}}{2 \pi \mathrm{nr}^{2}} \; \mathrm{rad} / \mathrm{s}^{2}$
- C
$\frac{\mathrm{V}_{0}^{2}}{4 \pi \mathrm{nr}^{2}}\; \mathrm{rad} / \mathrm{s}^{2}$
- D
$\frac{V_{0}^{2}}{4 \pi n r}\; \mathrm{rad} / \mathrm{s}^{2}$
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- [JEE MAIN 2019]
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