what id flotation principal? class 9
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When any boat displaces a weight of water equal to its own weight, it floats. This is often called the "principle of flotation": A floating object displaces a weight of fluid equal to its own weight. Every ship, submarine, and dirigible must be designed to displace a weight of fluid at least equal to its own weight.
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The principle of floatation states that when an object floats on a liquid the buoyant force that acts on the object is equal to the weight of the object. ... If the weight of the object is greater than the upthrust, then the object will sink in the fluid.
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