force applied in x axis using UIAccelerometer

I want to determine the force applied or the speed 开发者_JAVA技巧at which the iphone is moved in x axis using UIAccelerometer.

So ? Check out the http://developer.apple.com/iphone/library/documentation/uikit/reference/UIAccelerometerDelegate_Protocol/UIAccelerometerDelegate/UIAccelerometerDelegate.html This shows you what you need to know.