Dead Sea
What is the maximum load the mattress can carry on the surface of the Dead Sea? Physics Question?
A beach mattress filled with air has a volume of 120 L and a mass of 6.0 kg. What
is the maximum load the mattress can carry on the surface of the Dead Sea? The saline
water of the Dead Sea has a density of 1240 kg/m3? Assume that the mattress retains its
shape and volume regardless of load.
120L = 0.12m³
so the mattress will displace 0.12m³•1240kg/m³ = 148.8kg of water when fully submerged. Since it has a mass of 6kg, it can carry just under 142.8kg of load before sinking.
The Dead Sea in Jordan
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