A rod of length L fixed at the origin at one end is placed along the x-axis at t = 0. It starts rotating about the z-axis in the x-y plane anti-clockwise as seen from the positive z-axis. The angular velocity is given by ω = 2θ2, θ is the angular displacement. The angular acceleration of the rod is
1
\(\theta ^3 \)
2
\(2 \theta ^3 \)
3
\(4\theta ^3 \)
4
\(8 \theta ^3 \)