When an object is dropped on a certain earthlike planet, the distance it falls in tseconds, assuming that air resistance is negligible, is given by s(t) = 14':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 3 sec, (b) how fast the hammer is traveling 3 sec after being dropped, and (c) the hammer's acceleration after it has been falling for 3 sec. (Z) (a) The hammer falls |:| feet in 3 seconds. (Simplify your answer.)