I'm having a hard time overcoming a personal misconception regarding Newton's balanced and unbalanced forces. Hopefully one of you can help. If I am standing on a wooden box, gravity exerts a downward force, which the box absorbs and dissipates through it’s construct. Over time the box may start slowly degrading and the energy being absorbed snaps the wood fibers releasing some energy there, and continues until the construct is no longer able to absorb all the downward force of gravity and it collapses. Does Newton suggest that the box returns an equal amount of energy in an upward direction to create a balanced force? Doesn’t it make more sense that the force is absorbed and released through friction energy and deterioration in the construct of the box? (Please don't focus on the box, it could be a slab of marble or concrete.) Thanks in advance for any productive comments or answers.