Calculating upthrust on an object 1. The problem statement, all variables and given/known data An object made entirely of one material has a volume of 30m3. It floats in a liquid of density 30 g/cm3 with only half it's mass below the liquids surface. The object is then placed in a liquid of the same volume but with a density of 1 g/cm3. If the final upthrust that will act on the object is expressed in the form a*10bN give the values of a and b. Assume g to be 10 ms2 2. Relevant equations d=m/v 3. The attempt at a solution 1st liquid 3000=m/30 =90000 90000/2 = 45000 Kg displaced 45000 * 10 = 450000 N upthrust (archimedes) 45000/3 = 15000 N upthrust in 2nd liquid a=1.5, b=4 I honestly have no idea really.