[IchiRef]

Long-time reader, first time poster... I am a sophomore official and i have a couple of question about some situations:

1) a player dives at a loose ball and his momentum causes him to slide a across the floor. This is legal, correct?

2) a player who is lying on their back with the ball may sit up legally, correct?

3) I saw this many times last year and it seems a little fishy to me. A1 is inbounding the ball to A2. A1 uses a bounce pass which, on its way to A2 bounces either out of bounds or on the line (which I believe is the same as out of bounds) violation?

Thanks for your help.