In which case does more pressure arise: from a person weighing 60 kg with a shoe sole area of 300 cm ^ 2

In which case does more pressure arise: from a person weighing 60 kg with a shoe sole area of 300 cm ^ 2 or from a tractor weighing 10 tons with a track support surface area of 2 m ^ 2?

These tasks: mh (human weight) = 60 kg; Sч (human support area) = 300 cm2 = 0.03 m2; mt (tractor weight) = 10 t = 10 ^ 4 kg; St (tractor support area) = 2 m2.

Constants: g (acceleration due to gravity) ≈ 10 m / s2.

1) Pressure from a person: Ph = mh * g / Sh = 60 * 10 / 0.03 = 2 * 10 ^ 4 Pa.

2) Pressure from the tank: Pt = mt * g / St = 10 ^ 4 * 10/2 = 5 * 10 ^ 4 Pa.

3) Comparison of pressures: Ph (2 * 10 ^ 4 Pa) <Pt (5 * 10 ^ 4 Pa).

Answer: The tank creates more pressure.



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