ocr: How much water does a boat displace? A boat floats on the water by displacing (pushing away) an amount of water with the same weight as itself. To estimate how much water this is, you need to know the volume of the boat under the water and the water's density. The density ofa substance is its mass divided by its volume. If something has a mass of 8 kg and a volume of 2m', for example, it has a density of 4 kg/m'. Pure water has a density of exactly 1000 kg/m', so a rowing boat that pushes aside 2 m' of river water displaces a mass of about 2000 kg. A rowing boat weighs far less than this, even ...
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