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In non - uniform circular motion, the ratio of tangential to radial acceleration is $(\mathrm{r}=$ radius, $\propto=$ angular acceleration, $\mathrm{V}=$ linear velocity)
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$\frac{r^{2} \alpha}{V^{2}}$
Tangential acceleration $=a=\alpha r$
Radial acceleration $=\frac{\mathrm{V}^{2}}{\mathrm{r}}$
$\therefore(1) \div(2) \quad \frac{\alpha r \times r}{V^{2}}=\frac{\alpha r^{2}}{V^{2}}$
Radial acceleration $=\frac{\mathrm{V}^{2}}{\mathrm{r}}$
$\therefore(1) \div(2) \quad \frac{\alpha r \times r}{V^{2}}=\frac{\alpha r^{2}}{V^{2}}$
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