A body of mass m-2kg is tied to the end of a thread, the other end of which is fixed to the roof. When we exert a horizontal force of measure F on the signal then the signal-system equilibrates to such a position where the thread forms with the vertical angle φ-60 Draw all the forces exerted on the signal and calculate them. (g10ms). Calculate the force F, let the system balance. Hmf-0.8 is given.