Influence of the pressure of rugby ball to as the distance you can kick it .?

Question

Would like help with my project for SCIENCE EXPO

Answer 1

Well is it pressure inside the balls or around them.  If it's inside the balls then it negligible.  If it's in the air the players maybe effected and you may have a harder time effectively keeping the air inside the ball.  Sorry American answer.

Answer 2

Now being a rugby player and also a goal kicker I find having a little less air in a ball makes kicking far more proficient.

I believe it's because with a little less air is creates a bit of a soft spot when you kick it so it comes off your foot a little "sweeter"

Answer 3

Fortunately the pressure to which a rugby game ball should be inflated is quite strictly stipulated in the Laws of the Game,

viz.:0.67 - 0.70 Kg/sq.cm, or, 9½ -10 lbs/sq.in. at sea level (?)

What happens when significantly above sea level, i.e. Denver

('Mile High City'), or below, I'm not quite sure, but surely a good question to ask of the IRB.   This can be easily checked with a needle for inflating the ball and a tire gauge, though I can't remember seeing too many refs. doing so (I did when I was refereeing), it was usually a question of the 'squeeze

test' of the several balls proferred prior to kick-off, preference being given to the tighter or greater pressure ball(s).   I would

gather from this that the firmer pressure ball travels further when kicked and obviously has a more 'lively' bounce.