Physics - Circular Motion Question with Solution | TestHub

circumference$=2\pi r=1.25 \mathrm{m}$

so radius$r=\frac{1.25\mathrm{m}}{2\pi }=0.199 \mathrm{m}$

Mass of each link is m$=\frac{2 \mathrm{kg}}{125}$$=0.016$$\mathrm{kg}$

angular velocity is$w=50$revolutions per second =$50\times 2\mathrm{\pi } \mathrm{rad} {\mathrm{s}}^{-1}=314 \mathrm{rad} {\mathrm{s}}^{-1}$

The centripetal force on each link is$f=m\times r\times w^2=\left(0.016\times 0.199\times {314}^2\right) \mathrm{N}$

$f=\mathrm{314 }$$\mathrm{N}$