Question

A loaded cargo ship sails from sea water to river water. State and explain your observation.

  • Upthrust in Fluids Archimedes' Principle and Floatation Class 9 ICSE
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Answer

The ship begins to submerge more as it sails from sea water to river water.

The water of a river is of low density than that of a sea. Therefore, when a loaded cargo ship sails from sea water to river water, it sinks further. The reason is that according to the law of floatation, to balance the weight of ship, a greater volume of water is required to be displaced in water of lower density in river.

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