Question

in the figure o is the center of the regular pentagon ABCDE. Five forces each magnitude each of magnitude Fo are acted as shown in figure. The resultant forces is:

Image is in attachment:- please someone help

Answer 1

see ,F along A and F along E would cancel the effect of F along C

and the net force will be due to force along B and D

there resultant will be towards c . so

Fnet = ( F² + F² + 2F.F cos60)½

= (3F²)½

= √3 F along C

hope it helps :,-)