Tour 5. Bobby starts a Slinky at the top of the stairs to his little brother, Paul, at the
bottom. As the springy toy "walks" its way down, the velocity of one end of it
follows the function, wt) = 3 sint - sect. Here t is in seconds and w is measured
in inches per second. If it took the Slinky /4 seconds to take its first step, how
big of a step is this?