At the grocery store, I often move shopping baskets from the self-checkout lane to the front door with the mobile attendant on the top. Usually when I put them down into the rack, the mobile attendant will fly out of the basket and hit the floor adjacent to the rack. Why does this happen?
By the way, the mobile attendant looks like a palm pilot or PDA.
Answer by Chief
The equal and opposite reaction of the basket hitting the floor. In order to stop the basket from falling, the ground pushes up on the basket and it’s contents.