A hotel elevator ascends 190 m with a maximum speed of 4.0 m/s. Its acceleration and deceleration both have a magnitude of 1.4 m/s2.

A hotel elevator ascends 190 m with a maximum speed of 4.0 m/s. Its acceleration and deceleration both have a magnitude of 1.4 m/s2. How long does it take to make the complete trip from bottom to top?

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