Answer:
16.64 km/h
Explanation:
Think of the x and y components as the a and b sides of a triangle and simply do the Pythagorean Theorem:
[tex]a^2+b^2=c^2[/tex]
[tex]14^2+9^2=c^2[/tex]
[tex]\sqrt{196+81}=c[/tex]
[tex]\sqrt{277}=c[/tex]
[tex]16.64 km/h[/tex]
