A runner can slide into any base.
No. That would be an obstruction and the base-runner would be safe.
A home plate collision is usually the case of a base runner that was on one of the bases trying to reach home plate in order to score while the other team's Catcher is trying to block home plate in order to prevent the base runner from touching home plate in an effort to prevent a run from scoring and the runner and the base runner usually slides into the Catcher that is blocking home plate which is what one example of a home plate collision is.
Yes, you can slide into any base.
steal of home
Whenever there is a play the runner has to slide. there is no mandatory slide rule the runner just has to avoid contact
No, the only time a runner is forced to slide or avoid a play is when he has already been determined and called out on the base paths.
No... The base runner is never called out when the ball is thrown and hits the runner ...
The lead runner is the runner at the base closest to home plate when there is more than one runner on base. If there are runners on second base and third base, the runner on third base is the lead runner. If there are runners on first and second, the runner on second is the lead runner. If there is only one runner on base, there is no lead runner.
Assuming the catcher is near home plate, the runner has to slide. If he doesn't and knocks the catcher down he is out. If the catcher is up the baseline and is waiting to make the tag the runner would be called out for crashing into him. If the slide knocks the catcher down, the outcome of the play would depend on whether the catcher maintained control of the ball during the tag and whether the runner touched home plate.
As soon as the runner touches home plate, the run scores. The following runner has the right to third base. Either the base coach or the following runner on third base should tell the runner who scored that it was not a foul ball and he should go to the dugout. The ball is still live.