Odpowiedzi

2009-12-05T12:54:39+01:00
A1 = 5 m/s^2
a2 = 7 m/s^2
F1 = 2500kN = 2'500'000N
F2 = ?

F = m*a
F1 = m*a1 => m = F1/a1
F2 = m*(a2 - a1) = F1*(a2 - a1)/a1 = 2'500'000*(7-5)/5 = 5'000'000/5 = 1'000'000N = 1000 kN