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***Official*** 2nd Test at Adelaide

morgieb

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There's no umpire's call on something which is completely 100% definitive i.e. where the ball hit the ground
If where the ball hit the ground is 100% definitive, then why isn't "where it hit him on the pad"?
 

Spark

Global Moderator
If where the ball hit the ground is 100% definitive, then why isn't "where it hit him on the pad"?
Because that isn't definitive, because a human has to basically guess where the impact is which is actually quite hard to do precisely, due to the fact that a very hard, fast object (a cricket ball) impacting a soft, angular object (a pad) is not even remotely elastic and therefore quite hard to pin down. The interaction between ball and pad will almost certainly change the ball's trajectory in completely unexpected ways even as the ball is "sinking in" to the pad, and therefore the point of impact is never quite certain.

Whereas, well, you can sort of see where it hit the ground.
 
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Starfighter

Cricket Web: All-Time Legend
Because that isn't definitive, because a human has to basically guess where the impact is which is actually quite hard to do precisely, due to the fact that a very hard, fast object (a cricket ball) impacting a soft, angular object (a pad) is not even remotely elastic and therefore quite hard to pin down. The interaction between ball and pad will almost certainly change the ball's trajectory in completely unexpected ways even as the ball is "sinking in" to the pad, and therefore the point of impact is never quite certain.

Whereas, well, you can sort of see where it hit the ground.
Static you mean? The pad is quite elastic. That fact that it's usually moving doesn't help.
 

Spark

Global Moderator
Static you mean? The pad is quite elastic.
Elastic in the sense of an elastic collision. Think two billard balls colliding (that would be elastic) as opposed to, say, two grandfather clocks (very, very non-elastic). One process is very easy to predict, one is not.
 

Starfighter

Cricket Web: All-Time Legend
I haven't physics'd since high school so I wouldn't remember.


I was thinking is a deformational sense.





Inside edge?
 

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