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September 21, 2014

September 21, 2014

Posted by **erin** on Monday, September 27, 2010 at 9:46pm.

Math - Reiny, Monday, March 8, 2010 at 9:46am

acceleration = change in velocity/change in time

= 100 miles per hour/7 second

= (100 miles per 3600 seconds)/7 seconds

= 100 miles/25200 sec^2

= .004 miles/sec^2 (correct to 3 decimals

why was the numerator and denominator multiplied by 3600

- math -
**Reiny**, Monday, September 27, 2010 at 10:06pmthe original velocity was in miles/hour

but the question asked for miles/second

how many seconds are there in an hour?

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