Homework Help: physics

Posted by heather on Thursday, September 13, 2012 at 12:00am.

in 1993 bicyclist rebecca twigg of the united states traveled 3.00 km in 217.347 s suppose she travels the entire distance at her average speed and that she then accelerates at -1.72 m/s2 TO COME TO A COMPLETE STOP AFTER CROSSING THEfinish line hoew long does it take her to come to a stop?

in 199

physics - Henry, Friday, September 14, 2012 at 4:54pm
Vo = 3000m / 217.347s. = 13.8 m/s.
V = Vo + at = 0
13.8 - 1.72t = 0
-1.72t = -13.8
t = 8.0 s.

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