Răspuns:
# "Vezi explicația" #
Explicaţie:
# a = {dv} / {dt} #
# => dv = a dt #
# => v - v_0 = 2 int t ^ (2/3) dt #
# => v = v_0 + 2 (3/5) t ^ (5/3) + C #
#t = 0 => v = v_0 => C = 0 #
# => 3 = 2 + (6/5) t ^ (5/3) #
# => 1 = (6/5) t ^ (5/3) #
# => 5/6 = t ^ (5/3) #