Find the magnitudes of the unknown forces if the sum of all forces is zero (figure)

Find the magnitude of the unknown forces if sum of all forces is zero.

Find the magnitude of the unknown forces X and Y if sum of all forces is zero.

Find the magnitude of the unknown forces X and Y if sum of all forces is zero.

Find the magnitude of the resultant of shown forces :-

Sum of magnitude of two forces is 25 N. The resultant of these forces is normal to the smaller force and has a magnitude of 10 N. Then the two forces are

Suppose F,F_(N) & f are the magnitudes of the contact force, normal force and the frictional force exerted by one surface on the other, kept in contact, if none of these is zero :

The sum of the magnitudes of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90^(@) with the force of smaller magnitude, What are the magnitudes of forces?

The sum of the magnitudes of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90^(@) with the force of smaller magnitude, What are the magnitudes of forces?