Class 11PhysicsFluid Mechanics and Surface TensionBuoyancy, Archimedes' Principle and Laws of Floatation
MediumWhen two corks,one small and one big,are placed into a vessel filled with water and released,which cork will reach the surface of the water faster? Why?
(B) The bigger cork will reach the surface faster. According to Archimedes' principle,the buoyant force acting on an object is equal to the weight of the fluid displaced by it. Since the bigger cork has a larger volume,it displaces a greater volume of water compared to the smaller cork. Consequently,the buoyant force acting on the bigger cork is significantly higher. Since the buoyant force is the upward force responsible for bringing the cork to the surface,the larger cork experiences a greater net upward acceleration,causing it to reach the surface faster.
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