Clara is jogging at a speed of 1.5 meters per second. What is her speed in kilometers per hour?

1m->0,001km and 1sec -> 1/60*60 so 1m/s->0,001/(1/3600) km/h = 3.6 km/h but you have 1.5 m/s so 1.5*3.6=5.4 km/h