I'm putting this on a shirt.

[Fr8monkey]

[Bill Phil]

Who wouldn't?

[Superfluous J]

I'd buy that from TeeFury if it didn't have the falling guy on it.

Make the viewer work for the prize.

[benzman]

Sheldon would love it!

[Starwhip]

[Hcube]

Technically, Vf=Vi+at does kill you though, since the energy that will break your skull is vf^2*m*1/2

Right ? --->or maybe we're not speaking about the same thing : i'm french and we might not use the same names fofr variables as in english

Tell me

[Starwhip]

Technically, Vf=Vi+at does kill you though, since the energy that will break your skull is vf^2*m*1/2

Right ? --->or maybe we're not speaking about the same thing : i'm french and we might not use the same names fofr variables as in english

Tell me

Vf -> Velocity of Fall

Vi -> Initial Velocity

a -> Acceleration

t -> Time

[Hcube]

that's what i thought, thanks

[Bill Phil]

"It's not the velocity that kills you, it's the force!"

Basically what it says...

[NFUN]

I think it'd make more sense if it said "It isn't the vf=vi + at, it's the d^2v/dt^2" in a prettier fashion. Nobody says "It's not the [speed of] the fall that kills you, it's the force". They say it's the sudden stop at the end, aka the jerk.

[Bill Phil]

I think it'd make more sense if it said "It isn't the vf=vi + at, it's the d^2v/dt^2" in a prettier fashion. Nobody says "It's not the [speed of] the fall that kills you, it's the force". They say it's the sudden stop at the end, aka the jerk.

A jerk is the change in acceleration. It's not as relevant here...

Unless we're not being technical...

[K^2]

If you are going for the "It's not the fall that kills you," I would replace the formula for final velocity with v_i + sqrt(2gh). That makes it more clear that you are talking about a fall from a fixed height.

I'd also replace the final one with delta-p / delta-t. It's exactly the same thing (in Classical), but delta-p immediately tells me "impulse". And impulse makes me think of an impact. While the "mass times average acceleration" can be anything.

[Superfluous J]

I would also remove the equal signs. Makes it clunky looking.

I have a t-shirt that says "May the F=ma be with you" and it annoys me that read out loud it is "may the force equals mass times acceleration be with you." Where if it was just "ma" then the reader would have to figure out that "ma" means "mass times acceleration" which equals force. It's more clever that way.

Of course, then it would just say "May the ma be with you" and people would wonder if it was some kind of "yo mama" joke. So maybe the entire concept of the shirt doesn't work.

Also? Most people think it says "May the FEMA be with you" and it's a joke about Hurricane Katrina. This poor shirt just can't catch a break.

[NFUN]

A jerk is the change in acceleration. It's not as relevant here...

Unless we're not being technical...

Thinking about it, yeah, the jerk isn't really relevant. I just like that jerk:acceleration::acceleration:velocity. Seems out of place.

[Starwhip]

I would also remove the equal signs. Makes it clunky looking.

I have a t-shirt that says "May the F=ma be with you" and it annoys me that read out loud it is "may the force equals mass times acceleration be with you." Where if it was just "ma" then the reader would have to figure out that "ma" means "mass times acceleration" which equals force. It's more clever that way.

Of course, then it would just say "May the ma be with you" and people would wonder if it was some kind of "yo mama" joke. So maybe the entire concept of the shirt doesn't work.

Also? Most people think it says "May the FEMA be with you" and it's a joke about Hurricane Katrina. This poor shirt just can't catch a break.

Yes, those are some problems. However, in this case I think that removing the equal signs wouldn't really affect the shirt very much because the equations are complex enough to not be mistaken for letters/words.

[pincushionman]

A jerk is the change in acceleration. It's not as relevant here…

Oh, it's absolutely a change in acceleration where the problem's at. there's no change until you introduce a contact reaction.

[Bill Phil]

Oh, it's absolutely a change in acceleration where the problem's at. there's no change until you introduce a contact reaction.

There wouldn't be a change in acceleration (or, not so much of one), as Earth's good old gravity tugs on you, accelerating you all the time.

[Starwhip]

There wouldn't be a change in acceleration (or, not so much of one), as Earth's good old gravity tugs on you, accelerating you all the time.

The acceleration in question is the sudden decceleration of smacking into the ground.

[Bill Phil]

The acceleration in question is the sudden decceleration of smacking into the ground.

Yes. But that's not quite relevant. The acceleration at the time of impact is relevant.

[Starwhip]

Yes. But that's not quite relevant. The acceleration at the time of impact is relevant.

Then shouldn't it be just a = (V - V0) / (t - t0)?

[NFUN]

The force is really what is relevant at the end, I just said acceleration (or jerk) because that is closer to how the expression goes. With acceleration, force is implied anyways.

[Reactordrone]

The acceleration in question is the sudden decceleration of smacking into the ground.

Yes. But that's not quite relevant. The acceleration at the time of impact is relevant.

The acceleration at the time of impact is the sudden deceleration when you hit the ground. Acceleration due to gravity will frequently be cancelled out by drag so the only relevant acceleration is when you go from whatever speed you're falling at to 0m/s in a very short space of time.

[PakledHostage]

A jerk is the change in acceleration. It's not as relevant here.

But jerks HAVE killed and injured plenty of people over the years.

[Superfluous J]

But jerks HAVE killed and injured plenty of people over the years.

Yeah, those JERKS.

[mardlamock]

I was thinking about making a t-shirt that showed and arm but instead of it having blood carrying veins and arteries, had UDMH and N2O4. It would read ''100% hypergolic veins''