Hi there! :)
Answer:
[tex]\huge\boxed{522 km/hour}[/tex]
[tex]\text{Express 145 m/s as a fraction:} \frac{145m}{s}[/tex]
[tex]\text}Convert to km/hour by multiplying by the equivalents in terms of meters and seconds to cancel out the units}[/tex]
[tex]\frac{145m}{sec} * \frac{3600 sec}{1 hour} * \frac{1 km}{1000 m} = \\\\\text {Cross out similar units and multiply the coefficients:}\\\\\frac{145 * 3600 * 1km}{1 * 1hour * 1000} = \frac{522000km}{1000hour}= 522 km/s.[/tex]
