Math question for baseball

[VWG]

What math equation would you use to determine the following?
If a pitch is thrown from 40' away and is clocked at 60mph, then how fast is that in relation to a pitch being thrown at 60'?

Kind of like in the LL World Series, where the kid is throwing close to 70mph from about 46' and the ESPN crew adjusts it to show that it is in relation to a 90mph major league pitch.

[crzyjournalist03]

Speed=Distance/Time

[kaorder1999]

i dont even want to think about that...

[sinton66]

Algebraic expression.60/40=x/60. Cross multiply then divide. 60x60=3600/40x=90.

[kaorder1999]

holy crap...i feel so uneducated..thanks forney and a&m-commerce

[VWG]

Originally posted by sinton66
Algebraic expression.60/40=x/60. Cross multiply then divide. 60x60=3600/40x=90.

That doesn't seem right though. That would mean the equivalent of the 60mph at 40' would be 90mph at 60'.
If we were to go to 70mph at 40' then we would have
70/40=x/60. 70x60 = 4200/40x = 105mph

[sinton66]

Bert Blyleven consistently threw that in the majors. What's so hard to believe about that?

[crzyjournalist03]

that also shows one of the inconsistencies of "equivalents" when you're dealing with speed...although according to mathematical equations, it looks like 105 mph, it's not very realistic for such an equivalent to be common. The discrepency is due to the factor of time in the equation...there's also a difference between speed and velocity, but I don't feel like getting into that can of worms...:p

[Hupernikomen]

another way to look at it is to convert it to time it takes to reach the plate.

60 miles per hour x 5280 ft /3600s = 88 ft/sec

40 ft/88 ft sec gives you 0.454 secs till it reaches the plate.


now use that with the 60 ft mound.

60 ft/x = 0.454 where x is 132 ft/sec

now convert that to mph

132 ft/sec x 3600s/5280ft = 90 mph.


Of course the ratio thing was a bit easier, but this confirms that it is right.

[JasperDog94]

...but I thought I'd never use math in the real world...:eek:

[slpybear the bullfan]

What is the basis for relating the two? I was just curious because I had never heard of this before.

[Old Tiger]

Dang, I'm stupid

[mwynn05]

this is what i see after school????? this is to close to the kind of things we do in chemistry AHAHAHAH lol