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December 21, 2014

December 21, 2014

Posted by **y912f** on Friday, January 30, 2009 at 6:27pm.

1. Simpson drives his car with an average velocity of 48.0 km/h to the east. How long will it take him to drive 144 km on a straight highway?

answer=3.00 h

2. How much time would Simpson save by increasing his average velocity to 56.0 km/h to the east?

answer=0.43 h

- Physics -
**bobpursley**, Friday, January 30, 2009 at 6:34pmdistance=rate*time

time= distance/rate

- Physics -
**y912f**, Friday, January 30, 2009 at 7:15pmso i got the first one. but for the second one i did: t=144/56 and i got 2.57..i guess that is in hours..how would i change that to seconds?

- Physics -
**y912f**, Friday, January 30, 2009 at 7:35pmnevermind...the answer is .43HOURS..how did i get 2.57 hours...this question is really bothering me

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