When an object is dropped on a certain Earth-like planet, the distance it falls in t seconds, assuming that air resistance is negligible, is given by s(t) = 17t^2, where s(t) is in feet. Suppose that a medic's reflex hammer is dropped from a hovering helicopter. Find (a) how far the hammer falls in 2 seconds, (b) how fast the hammer is traveling 2 seconds after being dropped, and (c) the hammer's acceleration after it has been falling for 2 seconds.