A \(2\,\text{m}\) wide truck is moving with a uniform speed \(v_0 = 8\,\text{m/s}\) along a straight horizontal road. A pedestrian starts to cross the road with a uniform speed \(v\) when the truck is \(4\,\text{m}\) away from him. The minimum value of \(v\) so that he can cross the road safely is:
