[tex]dane:\\m = 100 \ t = 100 \ 000 \ kg\\v = 200\frac{m}{s}\\h = 8 \ km = 8 \ 000 \ m\\g = 10\frac{N}{kg}\\szukane:\\A) \ E_{p} = ?\\B) \ E_{k} = ?\\C) \ E_{c} = ?\\\\Rozwiazanie\\\\A)\\E_{p} = m\cdot g\cdot h\\\\E_{p} = 100000 \ kg\cdot10\frac{N}{kg}\cdot8000 \ m\\\\E_{p} = 8 \ 000 \ 000 \ 000 \ J = 8 \ GJ\\\\B)\\E_{k} = \frac{1}{2}mv^{2}\\\\E_{k} = \frac{1}{2}\cdot100000 \ kg\cdot(200\frac{m}{s})^{2}\\\\E_{k} = 2 \ 000 \ 000 \ 000 \ J = 2 \ GJ\\\\C)\\E_{c} = E_{p} + E_{k}[/tex]
[tex]E_{c} = 8 \ GJ + 2 \ GJ = 10 \ GJ\\\\\\(1 \ GJ = 1 \ 000 \ 000 \ 000 \ J)[/tex]