Question 18, 1.8.39-PS HW Score: 48.57%, 9.71 of 20 Part 1 of 3 points Points: 0 of 1 Save When an object is dropped on a certain earth-like planet, the distance it falls in t seconds, assuming that air resistand is negligible, is given by s(t) = 12+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 4 sec, (b) how fast the hammer is traveling 4 sec after being dropped, and (c) the hammer's acceleration after it has been falling for 4 sec