A solid wood toy boat with a mass of 325 g raises the water level of a 50 cm-by-40 cm aquarium by 0.3 cm. What is the density of the wood?

1 Answer
Somebody N.
May 14, 2018

#color(blue)(0.54g(mc)^(-3))#

Explanation:

To find the density you need the volume of the toy boat. The question dosen't state whether the boat was submerged. If it just floated on the surface then the water displaced will not be the volume of the boat.

We will assume boat was submerged:

Water displaced:

#40*50*0.3=600cm^3#

Density is #"mass"/"volume"#

#325/600=0.54g(cm)^(-3)#

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