Wednesday
April 23, 2014

Homework Help: physics

Posted by john on Monday, May 20, 2013 at 10:55pm.

An automobile and train move together along
parallel paths at 20.3 m/s.
The automobile then undergoes a uniform
acceleration of −4 m/s2 because of a red light
and comes to rest. It remains at rest for 19.4 s,
then accelerates back to a speed of 20.3 m/s
at a rate of 1.95 m/s2.
How far behind the train is the automobile
when it reaches the speed of 20.3 m/s, as-suming that the train speed has remained at
20.3 m/s?
Answer in units of m

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