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

One of the world's fastest roller coasters is located in a theme park in Valencia, California. Riders go from 0 to 100 miles per hour in 7 seconds. Find the acceleration of the roller coaster during this time interval in miles per second squared.

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

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