일반물리학 1 — Motion Along a Straight Line: Problem 29

29 A certain elevator cab has a total run of 190 m and a maximum speed of 305 m/min, and it accelerates from rest and then back to rest at \(1.22 \text{ m/s}^2\). (a) How far does the cab move while accelerating to full speed from rest? (b) How long does it take to make the nonstop 190 m run, starting and ending at rest?