Answer:
5 N.
Step-by-step explanation:
Given that,
A force vector M points 3 N in the x-direction and 4 N in the y-direction.
We need to find the magnitude of vector M. The magnitude of the vector when they are perpendicular to each other is given by :
[tex]M=\sqrt{3^2+4^2} \\\\M=5\ N[/tex]
So, the required magnitude of M is 5 N.