Physics - W.E.P. Question with Solution | TestHub

Given, Time period $(\mathrm{T})=11\sec$, mass of particle $(\mathrm{m})=7\mathrm{kg}$ and radius $(\mathrm{r})=10\mathrm{m}$ $\therefore$ Speed of particle, $v=\frac{2\pi r}{T}=\frac{2\times \frac{22}{7}\times 10}{11}$ $=\frac{40}{7}\mathrm{m}/\mathrm{s}$ $\therefore$ Centripetal force, $\mathrm{F}=\frac{{\mathrm{mv}}^2}{\mathrm{r}}=\frac{7\times \frac{40}{7}\times \frac{40}{7}}{10}=\frac{160}{7}\mathrm{N}$