This is an exercise in converting from one speed unit (m/s) to another (km/h). You should learn the "factor label" method. It works like this.
36.0 m/s*(1 km/1000m)*(3600s/h)
= 129.6 km/h
A TRAIN LEAVES THE STATION AT THE 0.0 M MARKER TRAVELING WITH A CONSTANT VELOCITY OF 36.0 M/S.
A) WHAT IS THE VELOCITY OF THE TRAIN IN KM/HR.
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