Consider a body just placed on the surface of the liquid. As the body starts sinking upward thrust gradually increases. If the weight of the body is greater than the upward thrust the body continues to sinks. When the upward thrust is equal to the weight of the body, the body floats.
Laws of floatation :
- The weight of floating body is equal to the liquid displaced.
- The center of gravity of the floating body and the center of buoyancy lie in the same vertical line.
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