An object's true weight is 123 n. when it is completely submerged in water, its apparent weight is 82.0 n. if the density of water is 1000 kg/m3 , then what is the density of the object?

Object true weight is given as

now we know that g = 9.8 m/s^2

now when it is complete submerged in water its apparent weight is given as 82 N

apparent weight = weight - buoyancy force

apparent weight = 82 N

weight = 123 N

now we have

82 = 123 - buoyancy force

buoyancy force = 123 - 82 = 41 N

now we also know that buoyancy force is given as

now as we know that mass of the object is 12.55 kg

its volume is 4.18 * 10^-3 m^3

now we know that density will be given as mass per unit volume

so here density of object is 3002.4 kg/m^3

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