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February 28, 2015

February 28, 2015

Posted by **Nick** on Thursday, September 3, 2009 at 1:30am.

a)How much time elapses from start to stop?

b)How far does the vehicle travel from start to stop?

- Physics -
**drwls**, Thursday, September 3, 2009 at 1:39ama) Add up the times it takes to accelerate and decelerate.

The time required to accelerate is

(26 m/s)/3 m/s^2 = 8.67 s

The time required to decelerate from 26 m/s^2 at a constant rate of -1 m/s^2 is 26 s.

b) Add up the distances covered while accelerating and decelerating. Each equals the average velocity (13 m/s) times the time interval.

- Physics -
**Nick**, Thursday, September 3, 2009 at 1:42amThank you.

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