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December 20, 2014

December 20, 2014

Posted by **Victoria** on Tuesday, October 2, 2012 at 9:17am.

- science -
**Jennifer**, Tuesday, October 2, 2012 at 5:44pmx = 1/2 a * t^2

v = a * t

where x is distance, a is acceleration, t is time, and v is speed

First you have to get the units to match. You probably want your answer of acceleration to be in ft/second^2, so convert 330 mph to ft/s

330 miles/hour = 330 miles / 3600 s = 0.0916 miles / s = 0.0916 * 5280 ft / s

= 484 ft / s

Plug numbers into the equation:

1000 = 1/2 a * t^2

484 = a * t

Use algebra to solve for a:

t = 484 / a

Plug equation for t into equation for x and you get:

1000 = (.5 * (484)^2 ) / a

solve for a

a = (.5 * 484^2 )/ 1000

a = 117 ft/s^2

You can then convert this to other units if that's what the problem asks for (i.e., m/s^2, etc)

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