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  • stone of mass 1kg is tied to the end of the string 1m long. It is whorled in a horizontal circle with the speed of 4m/s then the centripeta

stone of mass 1kg is tied to the end of the string 1m long. It is whirled in a horizontal circle with the speed of 4m/s then the centripeta

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\begin{array}{l} \mathrm{T}+\mathrm{mg}=\frac{\mathrm{mv}^{2}}{\mathrm{r}} \\ \mathrm{T}=\frac{\mathrm{mv}^{2}}{\mathrm{r}}-\mathrm{mg} \\ \frac{1 \times 4^{2}}{1}-1(10) \\ =16-10 \\ =6 \mathrm{N} \end{array}

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Satyajeet Kumar

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