what does backspin do to a golf ball
Backspin In golf, a well-struck shot will result in a large amount of backspin that will carry the ball higher into the air and farther. Backspin also helps with distance control, as if there is enough backspin, the ball will "check" if it lands on the putting surface, and sometimes even creep backwards (in the opposite direction that the ball was flying) upon landing.
Touchback In standard outdoor American football, the team awarded the touchback receives possession of the ball at its own 25-yard line in college football, and the 25 yard-line for professional football, on kickoffs and free kicks after a safety as of the 2012 season. In arena football, and other indoor football games, a touchback results in the team awarded the touchback receiving the football at its own 3-yard line. This can result from any of the above events except for punting, which is not a part of arena football. (In arena football, a kicked ball usually bounces back into play off of the rebound nets, but the above can still occur when the ball lands in the slack nets behind the goalposts after a kickoff, passes under the rebound nets and out of play, or in the event of fumbles and interceptions.)