回答: #“看到解释”# 说明: #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)#