Physics - Circular Motion Question with Solution | TestHub

A car is accelerating on a rough circular track, according to the equation $\theta =\left(\frac{t^2}{2}+2\right)\mathrm{rad}$ where $\theta$ is its angular displacement and t is time in sec. The angle between tangential friction and total friction is $\beta$ then find the value of $\tan \beta$ at $\mathrm{t}=3\mathrm{s}$.