8. If horizontal velocity is 5 m/s, and vertical velocity is 8 m/s, what is the magnitude of the resultant velocity?*
O
4.9 m/s
O
3.5m/s
9.4m/s
O 13m/s

9.4

Explanation:

magnitude is the sum of the squares.

If you are given horizontal and vertical components, treat those as the rise and run of a triangle, the rise of 8 with a run of 5 and you want to find the hypotenuse.

How do you find the long side of a triangle?  

this is poiselle's equation from fluid mechanic in physics. mech eng