Question

If vx = 3 meters/second and vy = 4 meters/second, what is the magnitude of the resultant velocity?

Answer 1

The resultant is the vector sum of two or more vectors. It is the result of adding two or more vectors together. We use the pythagorean theorem for this case. We do as follows:

vR^2 = vx^2 + vy^2
vR = √3^2 + 4^2
vR = 5 m/s

Hope this answers the question. Have a nice day.