Posted by **pat** on Monday, June 27, 2011 at 6:55am.

If a car goes along a straight road heading east and speeds up from 45 ft/sec to 60. ft/sec in 5 sec, calculate the acceleration.

= 3-3 ft/sec 2 NESn/aW

Note: If the speed were given in miles per hour, and the time were given in minutes, you could change the minutes to a fraction of an hour and do the problem. The answer would be in miles/hr2.

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