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help me understand......

That_4.0_ranger

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so me and some buddies were playing with a basket ball in a foot and a half of snow (i know were a bunch of fricken einsteins) anyway the ball bounced off something and hit my truck. upon further inspection the damn basket ball dented my quarter panel now someone help me understand this.
 
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alwaysFlOoReD

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Its what happens due to a lack of alcohol and drugs...
 

snoranger

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Which part don’t you understand?

Why were you playing basketball in the snow too close to your truck? You have to tell us that.

Why did the ball dent your truck? Because it was moving at a velocity high enough to overcome strength of the metal.

Why did the ball bounce toward your truck? Murphy’s Law... Anything that can go wrong, will go wrong.
 

rusty ol ranger

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so me and some buddies were playing with a basket ball in a foot and a half of snow (i know were a bunch of fricken einsteins) anyway the ball bounced off something and hit my truck. upon further inspection the god damn basket ball dented my quarter panel now someone help me understand this.
Because unfourtantly vehicle steel isnt as thick as it was in the 70s.

Quarter panel dent should be easy to pop back out mostly straight. Try a (good) suction cup dent puller.
 

ericbphoto

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Put a bandaid on it and learn from your mistake.
 

rumblecloud

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No video or pics, it didn't happen -- nothing to see here -- this isn't the dent you were looking for...
 

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Bouncing ball

The physics of a bouncing ball concerns the physical behavior of bouncing balls, particularly its motion before, during, and after impact against the surface of another body. Several aspects of a bouncing ball's behavior serve as an introduction to mechanics in high school or undergraduate level physics courses. Wikipedia

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That_4.0_ranger

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Bouncing ball

The physics of a bouncing ball concerns the physical behavior of bouncing balls, particularly its motion before, during, and after impact against the surface of another body. Several aspects of a bouncing ball's behavior serve as an introduction to mechanics in high school or undergraduate level physics courses. Wikipedia

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ok i understand that butt what i don't understand is why did it dent so easy
 

Ranger850

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ok i understand that butt what i don't understand is why did it dent so easy
Cold weather makes things ( your truck & the basketball in this case ) less malleable ( more brittle ) causing it to dent easier than if it was in the summer.
 
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pjtoledo

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you ever heard of "heavy water" ?

well, basket balls are filled with heavy air, that gives them a lot more kinetic energy that is acted unto which ever object it encounters.

plus, the damn thing was cold so the rubber didn't flex and spread the load.
 

ericbphoto

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Cold weather makes things ( your truck & the basketball in this case ) less malleable ( more brittle ) causing it to dent easier than if it was in the summer.
Less malleable would be less flexible, therefore less likely to bend or dent. Let's just chalk it up to "wimpy sheet metal".
 

Ranger850

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Less malleable would be less flexible, therefore less likely to bend or dent. Let's just chalk it up to "wimpy sheet metal".
Less likely to bend, MORE likely to dent on not pop back or break. Still 'wimpy sheet metal' is a factor, for sure.

More than once have I had to straighten out sheet metal ( tin or aluminum ) to get rid of a dent or crease made by some greenhorn that doesn't know how cold effects metal. Much easier to do in the humid 90* summers than in the frigid 40* winters. Also easier to do at the shop wiht the correct tools than out in the field where I have to tap into my inner MacGuyver
 

ericbphoto

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Less likely to bend, MORE likely to dent on not pop back or break. Still 'wimpy sheet metal' is a factor, for sure.

More than once have I had to straighten out sheet metal ( tin or aluminum ) to get rid of a dent or crease made by some greenhorn that doesn't know how cold effects metal. Much easier to do in the humid 90* summers than in the frigid 40* winters. Also easier to do at the shop wiht the correct tools than out in the field where I have to tap into my inner MacGuyver
I still don't buy your reasoning. Even you keep saying it is easier to work and bend the metal at warmer temperatures, which is correct. Colder materials are more brittle. Brittle things break, crack and shatter.

The basketball hit the sheet metal and bent and stretched the metal. The fact that it stretched the metal is why the dent stayed.

To take this theory to extreme, heat the metal red hot and hit it. It bends, stretches, dents, etc. When colder, it resists being deformed. When extremely cold, it will shatter and break.
 

rusty ol ranger

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The bottom line is it dented because since the early 80s sheetmetal has gotten ridculiously thin.

You could of purposly lobbed that basketball at my 77 and it would of bounced off and gave you a black eye without even a ding to the truck.
 

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