What is upthrust . Describe in your own words ?
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An object that is partly, or completely, submerged experiences a greater pressure on its bottom surface than on its top surface. This causes a resultant force upwards. This force is called upthrust . The upthrust force is equal in size to the weight of the fluid displaced by the object. ...
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an upward thrust specifically : an uplift of part of the earth's crust.
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