ANSWER
22.22 m/s
Step-by-step explanation
1 kilometer is equivalent to 1000 meters and 1 hour is equivalent to 3600 seconds. To convert from km/h to m/s, we have to multiply by 1000 and divide by 3600,
![80\frac{\operatorname{km}}{h}\cdot\frac{1000m}{1\operatorname{km}}\cdot(1h)/(3600s)\approx22.22m/s]()
Hence, a speed of 80km/h is equivalent to 22.22 m/s.