Rock lifting calculation
Can a boy lift a 75 kg rock from the bottom of a pond if we assume he will raise a 50 kg rock in the dry?
The density of stone is 2500 kg/m3, and the density of water is 1000 kg/m3
Your answer:
The density of stone is 2500 kg/m3, and the density of water is 1000 kg/m3
Your answer:
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