1. The position at time t, in seconds, of an object moving along a line is given by s(t) = 3t^3 10t^2 + t, on the interval 0 t 6 . At what time, t, is the velocity increasing?

2. Determine the absolute extrema points of 1/3x^{^3}-5/2x^{^2} , on the interval [0,4].