thanks, this is actually a rectilinear motion problem
alright, now the next step, original problem is
f(x) = x^3/3-2x^2 + 3x +8
first derivative: x^2 - 4x + 3 ... x = 3 x = 1
second derivative: 2x - 4 ... x = 2
s(0) = 8
s(1) = 9 1/3
s(2) = 8 2/3
s(3) = 8
so now
time |...