A solid of mass 1.3kg suspended by a string is completely immersed in water. If the tension in the string is 6.0N calculate the upthrust of the solid. The volume of the s
o lid. The density of the solid.solution
Upthrust = Weight of the solid in water = Density of water x Volume of solid x g
Density of solid = 1.3 kg/Volume of solid
Volume of solid = 1.3 kg/Density of solid
Upthrust = 1000 kg/m3 x Volume of solid x 9.8 m/s2
Upthrust = 1000 kg/m3 x (1.3 kg/Density of solid) x 9.8 m/s2
Upthrust = 12.74 N
Therefore, the upthrust of the solid is 12.74 N.