(Solution) - Four boxes are placed on a uniform 28 lb wooden plank -(2025 Original AI-Free Solution)

Paper Details

Four boxes are placed on a uniform 28-lb wooden plank which rests on two sawhorses. Knowing that the weights of boxes B and D are 9 lb and 90 lb, respectively, determine the range of values of the weight of box A so that the plank remains in equilibrium when box C is removed.