How fast are you moving when you hit? Jump out of plane, parachute doesn't open?

[MichaelD]

This is probably easy for most of you...this is a "math place" afterall. I am not a math person. So I ask this.

For sake of this equation, the guy weighs 200 pounds. He jumps out of an airplane. Does it matter how high up he is?

Anyway, his parachute doesn't open. When he hits the earth, how fast is his soon-to-be-a-splashmark body traveling?

Thank you.

 

[newb111]

http://en.wikipedia.org/wiki/Terminal_velocity

 

[MichaelD]

Originally posted by: newb111
http://en.wikipedia.org/wiki/Terminal_velocity

Goddamn, that was fast. These days, the mathematically-inclined don't even do the math anymore. The hyperlink to Wikipedia. :Q

/reading

*edit*

OK, so I had a feeling that drag (also known as a spoiler to you ricers ) would factor into it. Still...I can't do the math.

 

[Zenmervolt]

Assuming a physics problem, his mass doesn't matter, only the distance of his jump. He will accelerate at 9.8m/s/s until he impacts.

Assuming this is a real world scenario, the poster above me has you covered.

ZV

 

[newb111]

Originally posted by: MichaelD

Originally posted by: newb111
http://en.wikipedia.org/wiki/Terminal_velocity

Goddamn, that was fast. These days, the mathematically-inclined don't even do the math anymore. The hyperlink to Wikipedia. :Q

/reading

Well, this way, not only do you get the answer, you also get a better understanding of the phenomenon.

 

[MmmSkyscraper]

Ask Wile E. Coyote...

 

[MichaelD]

Originally posted by: newb111

Originally posted by: MichaelD

Originally posted by: newb111
http://en.wikipedia.org/wiki/Terminal_velocity

Goddamn, that was fast. These days, the mathematically-inclined don't even do the math anymore. The hyperlink to Wikipedia. :Q

/reading

Well, this way, not only do you get the answer, you also get a better understanding of the phenomenon.

You're right; I do have a better understanding of HOW it all happens. This came about b/c a buddy of mine, who likes to jump out of perfectly good aircraft, wants me to do it too. :Q Hellllll no. My fat ass would make a big old SPLAT on the countryside...and who wants to mar a beautiful countryside, right?

 

[Electric Amish]

Originally posted by: Zenmervolt
Assuming a physics problem, his mass doesn't matter, only the distance of his jump. He will accelerate at 9.8m/s/s until he impacts.

Assuming this is a real world scenario, the poster above me has you covered.

ZV

Assuming no resistance...

 

[RichardE]

Originally posted by: MichaelD

Originally posted by: newb111

Originally posted by: MichaelD

Originally posted by: newb111
http://en.wikipedia.org/wiki/Terminal_velocity

Goddamn, that was fast. These days, the mathematically-inclined don't even do the math anymore. The hyperlink to Wikipedia. :Q

/reading

Well, this way, not only do you get the answer, you also get a better understanding of the phenomenon.

You're right; I do have a better understanding of HOW it all happens. This came about b/c a buddy of mine, who likes to jump out of perfectly good aircraft, wants me to do it too. :Q Hellllll no. My fat ass would make a big old SPLAT on the countryside...and who wants to mar a beautiful countryside, right?

Its worth doing if you have the chance.

You only live once, besides if you die, you won't care :beer:

 

[Squisher]

180 mph if you are upright or head down.

 

[ElFenix]

Originally posted by: MichaelD

OK, so I had a feeling that drag (also known as a spoiler to you ricers ) would factor into it. Still...I can't do the math.

a spoiler isn't there to create drag, it's to spoil the aerodynamic effects over the car's rear end. it thereby prevents lift.

 

[mugs]

Originally posted by: ElFenix

Originally posted by: MichaelD

OK, so I had a feeling that drag (also known as a spoiler to you ricers ) would factor into it. Still...I can't do the math.

a spoiler isn't there to create drag, it's to spoil the aerodynamic effects over the car's rear end. it thereby prevents lift.

The spoilers the ricers use probably create more drag than downforce.

 

[Spacehead]

Originally posted by: MichaelD
You're right; I do have a better understanding of HOW it all happens. This came about b/c a buddy of mine, who likes to jump out of perfectly good aircraft, wants me to do it too. :Q Hellllll no. My fat ass would make a big old SPLAT on the countryside ...and who wants to mar a beautiful countryside, right?

Maybe not

 

[MichaelD]

Originally posted by: ElFenix

Originally posted by: MichaelD

OK, so I had a feeling that drag (also known as a spoiler to you ricers ) would factor into it. Still...I can't do the math.

a spoiler isn't there to create drag, it's to spoil the aerodynamic effects over the car's rear end. it thereby prevents lift.

Your sarcasm meter is beyond busted, my friend. I KNOW what a spoiler is SUPPOSED to do. However, the great majority of the owners of imported cars with 110HP engines don't. They think that putting a spoiler with 42 square feet of area on their car will somehow speed it up, when in fact, it acts like a drag chute.

But still, I appreciate the fact that you've graced my humble thread. Please, fire away.

 

[mugs]

Originally posted by: MichaelD

Originally posted by: newb111
http://en.wikipedia.org/wiki/Terminal_velocity

Goddamn, that was fast. These days, the mathematically-inclined don't even do the math anymore. The hyperlink to Wikipedia. :Q

/reading

*edit*

OK, so I had a feeling that drag (also known as a spoiler to you ricers ) would factor into it. Still...I can't do the math.

It depend on what you're wearing, what direction your body is pointing, etc.

According to the Wikipedia article, the terminal velocity of a skydiver with a closed parachute is about 120 mph.

 

[Zenmervolt]

Originally posted by: Electric Amish

Originally posted by: Zenmervolt
Assuming a physics problem, his mass doesn't matter, only the distance of his jump. He will accelerate at 9.8m/s/s until he impacts.

Assuming this is a real world scenario, the poster above me has you covered.

ZV

Assuming no resistance...

Hence my "assuming a physics problem" answer and my secondary "assuming this is a real world scenario" answer.

ZV

 

[RKS]

Once you hit aren't you going 0.00?

 

[Electric Amish]

Originally posted by: Zenmervolt

Originally posted by: Electric Amish

Originally posted by: Zenmervolt
Assuming a physics problem, his mass doesn't matter, only the distance of his jump. He will accelerate at 9.8m/s/s until he impacts.

Assuming this is a real world scenario, the poster above me has you covered.

ZV

Assuming no resistance...

Hence my "assuming a physics problem" answer and my secondary "assuming this is a real world scenario" answer.

ZV

Umm....yeah.

No wonder I did better in Physics than English in school.

 

[Bootprint]

Nah you'll make it down no problem, but this brown shorts moment will happen.

 

[Vic]

Originally posted by: MichaelD
You're right; I do have a better understanding of HOW it all happens. This came about b/c a buddy of mine, who likes to jump out of perfectly good aircraft, wants me to do it too. :Q Hellllll no. My fat ass would make a big old SPLAT on the countryside...and who wants to mar a beautiful countryside, right?

Your "fat ass," with its additional volume, probably has a better drag-to-mass ratio than a skinny person. Meaning you'd actually splat less.

 

[MichaelD]

Psh. What the hell's the difference b/t hitting the ground at 120 vs. 180 MPH? Don't tell me "60MPH." :roll: I mean, you're a big, nasty stain, either way!

 

[fLum0x]

Originally posted by: Spacehead

Originally posted by: MichaelD
You're right; I do have a better understanding of HOW it all happens. This came about b/c a buddy of mine, who likes to jump out of perfectly good aircraft, wants me to do it too. :Q Hellllll no. My fat ass would make a big old SPLAT on the countryside ...and who wants to mar a beautiful countryside, right?

Maybe not

where is the video!?!?!?

 

[Vic]

Hehe. Just correcting your physics, that's all.

 

[hdeck]

don't need to be a math wiz to know about terminal velocity

 

[Smartazz]

It depends on what you're wearing I think, but you'll hit some maximum speed.