A certain elevator cab has a total run of 210 m and a maximum speed is 321 m/min, and it accelerates from rest and then back to rest at 1.10 m/s2.

A certain elevator cab has a total run of 210 m and a maximum speed is 321 m/min, and it accelerates from rest and then back to rest at 1.10 m/s2. (a) How far does the cab move while accelerating to full speed from rest? (b) How long does it take to make the nonstop 210 m run, starting and ending at rest?

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