s(t) = 8t³ - t² - 4t + 2
v(t) = s'(t) = 24t² - 2t - 4
a(t) = v'(t) = 48t - 2
v(3) = 24 * 9 - 6 - 4 = 206
a(4) = 48 * 4 - 2 = 190
s(t) = 8t³ - t² - 4t + 2
v(t) = s'(t) = 24t² - 2t - 4
a(t) = v'(t) = 48t - 2
v(3) = 24 * 9 - 6 - 4 = 206
a(4) = 48 * 4 - 2 = 190