Z lufy o długości 2 metry wylatuje pocisk o masie 1 kg. , czas przelotu wynosi 0,02 s . Oblicz F.
h= 2 m
m= 1kg
t=0,02s
F=?
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h = (at²) / 2
2h = at²
a = (2h) / t²
F = m * a
F = (2hm) / t²
F = (2 * 2 * 1) / 0,02² = 10 000 N = 10 kN