How do i get the basketball over the rim when i dunk?

When i try to dunk a basketball the ball always hits the rim. I can never seem to get the ball over it. My hand can go over 4 inches above the rim.How do i get the basketball over the rim when i dunk?
Pull the ball behind your head like Michael Jordan does and then when your at your highest leap dunk it in. Thats for two hands though.
Put on a weight jacketHow do i get the basketball over the rim when i dunk?
the ball is to big for your hand
4 inches over the rim might not be enough. however, you can try jumping from a little further: hitting the rim might be a sign that you're jumping too close next to the rim.How do i get the basketball over the rim when i dunk?
jump higher or go adjust the rim or go to a 9 ft hoop court or do P90x plyometrics.