\[\boxed{\text{5.472.}}\]
\[s = v \cdot t\]
\[\textbf{а)}\ t = \frac{1}{4}\ ч;\ \ v = 59\ \frac{км}{ч}:\]
\[s = 59 \cdot \frac{1}{4} = \frac{59}{4} = 14\frac{3}{4}\ км.\]
\[\textbf{б)}\ t = \frac{5}{6}\ мин;\ \ v = \frac{72}{100}\ \frac{м}{мин}:\]
\[s = \frac{5}{6} \cdot \frac{72}{100} = \frac{12}{20} = \frac{3}{5}\ м.\]