Object throughing dynamics

Hello.

What I want to code is the throughing of an object in the air: an object (movieclip) is selected with the mouse and then dragged to another position (new y < initial y) and then the object is let go to fall to the ground (initial y).

The movement of the object needs to look realistic. When it is let go, it has to go to the ground by following a curved line defined by the drag distance and drag speed.

I can figure out the x and y values of the start and stop drag and the time of the drag but I cannot figure out the code to define the curved movement of the object after it is let go.

Please check the attached image for an example.

Any help with the code or links to a tutorial would be appreciated.

Please let me know if I am clear.

Thank you for your time.