The position of the ball determines the spot.
In rugby the ball is only able to be passed backwards to a player in a position behind where you are standing. You are not allowed to pass the ball forward otherwise the opposition will get the ball in the form of a scrum at the position you passed the ball forward
You tackle the ball, not a player.
Receives the ball from the center, and either runs with it or passes it to another player. And they get tackled. A lot.
No, a timeout can not be called until the player with the ball is down or out of bounds.
Yes, as long as the player is not considered tackled a defensive player may strip the ball from the ball carrier.
It is when you have the ball and you get tackled and you feed the ball out to your halfback
If you are referring to the position, a safety is the approximate equivalent to the free safety position in American football. (The strong safety position is replaced by two "halfbacks", since there are 12 men to a side in Canadian football.) In scoring a safety is the same thing as in American football. If a player is tackled within his own end zone or steps out of the back of his own end zone the opposing team is awarded two points for a "safety" and the tackled player's team is then required to kick the ball off to their opponents.
In the NFL the player is marked down once he has complete control of the ball (no longer bobbling the ball) and has been touched down by contact. If the player bobbles the ball, but continues to run and is not down by contact the play continues. However if the player catches the ball but is still bobbling it while he is being pushed backward by a defender, the player will be marked down once he has control at that spot.
The ball is placed at the position of the ball when the player is downed. If that position is not between the hash marks it will be moved to the nearest hash.
it is called a safety. they are very rare and they are worth two points. the team that was tackled in there own endzone will then have to punt the ball to the opposing team