Ask Me Help Desk - Acceleration conversion

$\frac {\frac {5.6\,mi}{h}}{s} = \frac {5.6\,mi}{s\,h}$

$\frac {5.6\,mi}{s\,h} \, \times \, \frac {1\,h}{3600\,s}=\frac {5.6\,mi}{3600\,s^2}\, \times \, \frac {1609.344\,m}{mi} \,=\, \frac {5.6\,\times\,1609.344\,m}{3600\,s^2}$

You do the arithmetic.

Note that expressions such as $\frac {1\,h}{3600\,s}$ (hours per second or the inverse of seconds per hour) and $\frac {1609.344\,m}{mi}$ (meters per mile) are just identities (values equal to one). You are simply multiplying by 1 (with the numerator and denominator in different units) until you get the units you need.