Posted by **m** on Tuesday, May 21, 2013 at 8:13am.

An automobile and train move together along

parallel paths at 28.8 m/s.

The automobile then undergoes a uniform

acceleration of −4 m/s

2 because of a red light

and comes to rest. It remains at rest for 63.8 s,

then accelerates back to a speed of 28.8 m/s

at a rate of 1.58 m/s

2

.

How far behind the train is the automobile

when it reaches the speed of 28.8 m/s, assuming that the train speed has remained at

28.8 m/s?

Answer in units of m

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