Q. 40 There are four forces acting at a point P produced by strings as shown in the figure. Which is at rest? Find the forces F1 and F2.

Hint: Net force on at point p is zero.
Step 1: Resolve the forces into rectangular components and find F1 and F2 for equilibrium.
Consider the adjacent diagram, in which forces are resolved.
 
On resolving forces into rectangular components.
We get, equilibrium forces F1+12N are equal to 2 N and  F2 is equal to 2+12N.
 F1+12=2       F1=212=212=12=0.707Nand F2=2+12=2+12N=32N=2.121N