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CBSE Class 11-science Answered

A solid steel sphere sinks in water whereas a ship built with steel body floats. Why?
Asked by | 25 Oct, 2008, 09:33: PM
answered-by-expert Expert Answer

A solid body floats on a liquid only when the upthrust acting on it due to the liquid is greater than the body's weight. Also upthrust acting is equal to the weight of liquid displaced by the solid.

Here, the wieght of the water displaced by a ship is much more than that displaced by a solid steel sphere. Hence, the upthrust acting on the ship is more than its wieght , so it floats.

Answered by | 26 Oct, 2008, 02:09: PM

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