Cork and swimming
If a person weighs 80 kg, how many kilograms of cork must take a swimming belt to float on water? The density of the human body is 1050 kg/m3, and the cork is 300 kg/m3.
(Instructions: Let the human body and cork on a mixture with a density of 1000kg/m3. When you make the equation, you will compare the volumes of both components and the resulting mixture volume.)
(Instructions: Let the human body and cork on a mixture with a density of 1000kg/m3. When you make the equation, you will compare the volumes of both components and the resulting mixture volume.)
Correct answer:
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