Odpowiedź:
s = at^2/2
a = 2s/t^2 = 2×40m/(20s)^2 = 80m/400s^2 = 0.2 m/s^2
a) t = 10s
s = at^2/2 = 0.2 m/s^2 × 100s^2 / 2 =
10m
b) t = 40s (analogicznie)
s = at^2/2 = 0.2 m/s^2 × 1600s^2 / 2
= 160m
Wyjaśnienie:
