Ciężar Jana wynosi 650N, a pole powierzchni jego butów wynosi 0,05 m kw (metra kwadratowego). Oblicz ciśnienie jakie wywiera Jan na podłoże.

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Rozwiązane

Ciężar Jana wynosi 650N, a pole powierzchni jego butów wynosi 0,05 m kw (metra kwadratowego). Oblicz ciśnienie jakie wywiera Jan na podłoże.

Odpowiedź :

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Basetlaviz Basetlaviz · Answer 1

[tex]Dane:\\F = 650 \ N\\S = 0,05 \ m^{2}}\\1 \ Pa = \frac{1 \ N}{1 \ m^{2}}\\Szukane:\\p = ?[/tex]

Rozwiązanie

Ciśnienie mówi nam o tym, jaka jest wartość siły nacisku (zwanej też parciem) do pola powierzchni, na którą działa ta siła.

[tex]p = \frac{F}{S}\\\\Podstawiamy \ wartosci \ liczbowe\\\\p = \frac{650 \ N}{0,05 \ m^{2}}\\\\\boxed{p = 13 \ 000 \ Pa = 13 \ kPa}\\\\(1 \ kPa = 1000 \ Pa})[/tex]

Odp. Jan wywiera ciśnienie równe 13 kPa.