When the ground becomes saturated with water during floods, pressure develops similar to the pressure of water contained in a vessel of the same volume. This pressure forces water through the joints in concrete-block cellar walls. If this happens quickly enough to fill up the cellar with water, there may be no further damage. Otherwise, the upward pressure on the cellar floor may float the house like a ship. What upward force would be exerted on a 10-m × 10-m basement floor if the floor were 2 m below the surface of the water?