Respuesta :
a) [tex]v = \frac{390\ km}{150\ min}\cdot \frac{60\ min}{1\ h} = \bf 156\frac{km}{h}[/tex]
b) [tex]v = \frac{390\ km}{150\ min}\cdot \frac{1\ 000\ m}{1\ km}\cdot \frac{1\ min}{60\ s} = \bf 43,33\frac{m}{s}[/tex]
b) [tex]v = \frac{390\ km}{150\ min}\cdot \frac{1\ 000\ m}{1\ km}\cdot \frac{1\ min}{60\ s} = \bf 43,33\frac{m}{s}[/tex]