A particle starting from rest, moves in a circle of radius 'r'. It attains a velocity of V0 m/s in the nth round. Its angular acceleration will be,
1
\(\frac{V_{0}^{2}}{4 \pi nr^{2}}\) rad/s2
2
\(\frac{V_{0}^{2}}{4 \pi nr}\) rad/s2
3
\(\frac{V_{0}}{n}\) rad/s2
4
\(\frac{V_{0}^{2}}{2 \pi nr^{2}}\) rad/s2