There are two forces resulting from this interaction - a force on the chair and a force on your body. These two forces are called action and reaction forces and are the subject of Newton's third law of motion. Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object.
Our reusable Quick-Crates have been certified by the US Army to transport 4,000 lbs of live ammunition per crate and stack 3 crates high when loaded. That translates to a stacking capacity of 12,000 lbs. Our crates have phenomenal strength despite the fact that they are made only with 3/4 plywood panels. Each specific crate's load capacity may differ based on the product you are shipping and weight distribution.
Large truck and marine batteries can weigh up to 110 pounds (this one weighs about 75 pounds). By taking the time to set the order pallet to the same height as the storage pallet, the battery can be slid rather than lifted. Cost is negligible, just the extra couple of minutes to make the height adjustment.