The magnitude of the boat's resultant velocity will be 13 kilometers/hour.
The change of distance with respect to time is defined as speed. Speed is a scalar quantity. It is a time-based component. Its unit is kilometers/hour.
The magnitude of the boat's resultant velocity is found as;
[tex]\rm V_{resultant}=V_{north}-v_{west} \\\\ \rm V_{resultant}= 26 km/h - 12 km/h \\\\ V_{resultant}=13 \ km/h[/tex]
Hence, the magnitude of the boat's resultant velocity will be 13 kilometers/hour.
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