Question

An object that weighs 1140 N rests on a lever at a point 0.330 m from a support. On the same side of the support, at a distance of 3.00 m from it, an upward force with magnitude F is applied. Ignore the weight of the board itself. If the system is in equilibrium, what is F? Express your answer in Newtons.

Fig: 1

Fig: 2