[tex]\displaystyle\bf\\Se~ d\u a:\\masa~tancului:~m=20~tone=20000~Kg\\Lungimea~senilelor:~L=5~m\\Latimea~senilelor:~~~~l=60~cm=0,\!6~m\\\\Se~cere:\\Presiunea~produsa~de~tanc~pe~pamant.\\\\Rezolvare:\\\\Greutatea~tancului~este.\\G=mg\\unde:\\m=20000~Kg\\g=9,78~~(La~nivelul~marii~la~ecuator)\\G=mg=20000\times9,78=195600~N~~(Newton)\\\\Suprafata~este:\\S=2(L\times l)=2(5\times 0,6)=2\times3=6~m^2\\\\Presiunea~este:\\\\p=\frac{F}{S}=\frac{G}{S}=\frac{195600~N}{6~m^2}=32600~N/m^2=32600~Pa=32,6~KPa[/tex]
