Question

two foreces F1=1N and F2=2N act along the lines x=0 andy =0 respectively . then the resultant of forces would be

Answer 1

use basics of vector algebra to find resultant if vectors are at some angle.
x=0 means along y axis.
y=0 means along x axis.
both AXS are perpendicular hence forces(vectors) are also perpendicular.
get resultant.
Otherwise use pythogoras theorem to get hypotenuse as the base is 2N and perpendicular is 1N.

Answer 2

Explanation:

the resultant of the forces will be 2i cap + j cap