A disc is performing pure rolling on a smooth stationary surface with constant angular velocity as shown in fig. At any instant, for the lower most point of the disc

As the disc is in combined rotation and translation each point has a tangential velocity and linear velocity in forward direction

Yet (for lowest point) Velocity = $=\mathrm{V}-\mathrm{R\omega }=0$ and acceleration $\frac{{\mathrm{V}}^2}{\mathrm{R}}+0=\frac{{\mathrm{V}}^2}{\mathrm{R}}$