Physics - Rotation Question with Solution | TestHub

A point $\mathrm{P}$ moves in counter-clockwise direction on a circular path as shown in the figure. The movement of ' $\mathrm{P}$ ' is such that it sweeps out a length $s=t^3+5$, where $s$ is in metres and $t$ is in seconds. The radius of the path is $20\mathrm{m}$. The acceleration of ' $\mathrm{P}$ ' when $t=2\mathrm{s}$ is nearly