It is going about 9.3 yards per second; 40/4.3.
Depends on the speed the ball travels.
Yes
Yes, as long as no one on either team touches it before the 10 yards. After the ball travels ten yards during a kickoff it is a free ball. That's correct. Once the ball travels 10 yards, anyone can recover it.The receiving team can always recover after anydistance. So if an onside kick only travels 5 yards instead of the required 10 and the receiving team recovers, the receiving team would take possession of the ball at that spot.The 10-yard rule is a restriction on the kicking team only. The kickers cannot recover the ball until is has traveled 10 yards, UNLESS the receiving team touches the ball first. After the receiving team touches the ball, the kicking team can recover, regardless of how far the ball has traveled.
90 kmh
2
The question is the correct assessment. If a ball travels more than 10 yards, hits the ground in bounds, and the kicking team gains possession of the ball, the ball is dead and the kicking team is on offense.
As long as the ball ges 10 yards and is grounded at some point during the kick it is a free ball and may be recovered in the field of play by either team.
.41 tenth of a second = 0.041 seconds. 40 feet in 0.041 seconds = 975.61 feet/sec = 665.2 miles per hour. That is very fast for a ball. I can't think of any sport shifting a ball at that speed. In tennis the top players get the ball going at over 100mph, but not over 150mph, the same in cricket.
Golf ball. The longest home runs by MLB players are about 500 feet. That's about 170 yards, which is about half as far as the longest drives by professional golfers.
0.39 seconds
Yes. There is no rule about the kicking team passing the 10 yard mark before the ball, only that the kicking team cannot touch the ball before it travels 10 yards unless the ball is first touched by a member of the receiving team.
0.45 seconds