Input.Accelerometer in 2d ,

i am making a 2D game as my final year project in MSc. its an android game. i am facing some strange kind of issues regarding the accelerometer movements.. its not going smoothly.. my game object "ball" behaves strangely , it starts moving backwards suddenly, and strange kind of stuff. i have tried to fix it, but i dont know how to make accelemeter movements smooth... please help me out....**