Odpowiedzi

2010-03-09T17:03:38+01:00
20 m/s + 2*(-2 m/s2)= 16m/s
16 m/s *2 s= 32m
2010-03-09T17:33:39+01:00
T = 2 s
a = 2 m/s^2 ; znaczek ^ = do potęgi....
V0 = 20 m/s
s = ?
s = V0*t - a*t^2/2
s = 20 m/s*2s - 2m/s^2 *(2s)^2/t
s = 40 m - 4 m
s = 36 m