75. Equilibrium. We say an object is in equilibrium if all the forces on it balance (add up to zero). Figure 1.40 shows a beam weighing 124N that is supported in equilibrium by a 100.0N pull and a force F at the floor. The third force on the beam is the 124 N weight that acts vertically downward,

 75. Equilibrium. We say an object is in equilibrium if all the forces on it balance (add up to zero). Figure 1.40 shows a beam weighing 124N that is supported in equilibrium by a 100.0N pull and a force F at the floor. The third force on the beam is the 124 N weight that acts vertically downward, (a) Use vector components to find the magnitude and direction of $\vec{F}$. (b) Check the reasonableness of your answer in part (a) by doing a graphical solution approximately to scale.