Gabriel L.

asked • 10/29/20

A 20 cm high polystyrene board with a surface area of 40 dm2 is floating in the water.

a) What fraction of its volume is above the water surface?

b) If a 35 kg child is placed on this board, what will be the fraction of its volume that is above the water surface?

Data: Polystyrene density 300 kg/m3.

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