a sphere of mass 5 kg and volume 2.2x 10 -4 m3 is completely immersed in waater. find the buoyant force exerted by water on the sphere. Density of water = 1000kg/m3 (g=9.8 m/s2)
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Here, volume of sphere = Volume of water displaced = 2.2 × 104 m3(â sphere is completely immersed in water)Mass of the water displaced = Volume × Density = 2.2 × 104m3 × 1000 kg m3 = 2.2 × 101 kgThus, buoyant force exerted by water = weight of water displaced = mg= 2.2 × 101 kg × 9.8 m/s2 = 21.56 × 101 N = 2.156 N