The ump wouldn't call the baserunner out if the fielder kicked the base out from under him, no.
if he interferes with the runner that would be called obstruction
Yes, as long as he does not interfere with the base runner.
If the runner remains standing on the bag when the 1st baseman touches the bag and the 1st baseman does not tag the runner prior to touching the bag, then the runner is safe and you have no double play. Answer To clarify, once the Batter becomes a batter-runner, the runner at first loses his right to occupy first base and is forced to advance. If he is tagged while standing on the base, he is out. If the first baseman then steps on first base the Batter-runner is also out -- Double Play. BUT, if the first baseman first steps on the base the batter-runner is out and the force is removed. If the runner standing on first base is now tagged he is safe.
If the first baseman tags first base, the runner originally on first is therefore not forced to second base and he is safe at first.
If it is a force (i.e. there are people on all the bases behind the runner) play, then yes, the baseman needs to touch the base to get the runner out. If the runner is not required to move to that base, then the baseman must tag the runner to get him out. The baseman does not NEED to touch the base to record the out. The defense may tag the runner OR the bag.
second base man- as long as the outfielders throw was decnt and in his range. if not, well the outfielder.
There are two situations when a baseman can tag the base for an out.The first is the force out. A force out happens when a baseman tags the base of the only possible location for the runner. For example, if a batter hits a ground ball to the first baseman, the first baseman only needs to tag first base because it is the runner's only possible destination. Also, if there was a runner on first base and a ground ball was hit, there would be a force out at both second and first base because they runner on first base would be forced to progress one base. With a man on first and second base, you can force at first, second and third, and with the bases loaded, there is a force at every base. If there is a runner on second and/or third, but not first, the runners are not required to progress one base, so there is only a force at first.The second is on the fly ball. If a fly ball is caught, a base runner must touch the base again ("tag up") before moving on to the next base. If they do not tag up after the ball is caught, the baseman at the base from which they left can tag that base for the out. For example, if there is a runner on first base and the batter hits a fly ball, and that ball is caught, the runner must touch the base after the ball is caught before he can leave for the next base. If he doesn't touch the base after the ball is caught, the baseman only need tag the base while holding the ball for the out.
no
That depends on where the 1st baseman fields the ball. If the 1st baseman can field the ball, throw to second, and have enough time to get safely back to the base to catch the return throw, then (s)he will cover. If not, then it is the responsibility of the pitcher.
No, if there is a runner on first and the second baseman fields the ball and throws it to the shortstop, who muffs the play and allows both the runner and batter to advance/reach safely, the play would be ruled a fielder's choice and an error. It would still count as an at-bat and a non-hit for the batter, just as if the second-baseman had muffed the throw to the first-baseman with nobody on base.
If the runner gets tagged, then he is out. If the base doesn't get stepped on or the runner gets tagged, then he is safe.
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.