# Rotational Mechanics! (Basic)

A solid body starts rotating about a stationary axis with an angular acceleration $$\alpha=(2 \times 10^{-2})t\ \text{ rad}\ \text{ s}^{-2}$$, here, $$t$$ is in seconds. How soon after the beginning of rotation will the total acceleration vector of an arbitrary point of the body form an angle of $$\theta=60^{\circ}$$ with its velocity vector?