ball not moving smoothy

[brigadier90]

Hello Guys,

So what i have is a very simple ball moving on a surface with friction, the ball has a vx and vy component. i get the ball to move and slow down with friction and it works fine. However, as the ball approaches 0, i start to notice what appears to be a wobbly effect (i.e: it starts to deviate left and right from its path). Ultimately it follows its line, but its as if it moves in ad out of it towards the end. Here is the math behind my ball's movement:

Friction = 0.2;

v -= friction;
vx = v * cos(theta);
vy = v * sin(theta);