[inaudible] Yeah, that's right. The velocity it starts off
your initial velocity shoot, shot up it's
gonna be decreasing, decreasing, decreasing down to zero
then it's gonna speed up speed up speed up until
it gets back to its initial velocity. It actually
actually loses upwards [inaudible]
wait, are you have you already done your acceleration?
Do you already know acceleration [inaudible]
[inaudible] You're not going to be able
to solve for both simultaneously because you have two
unknowns in one equation. [inaudible] You do know the
velocity and units per second, but you want to know the velocity in inches per second.
You're trying to find acceleration due to gravity in inches
per second. So what I would do and that's
why we started with this formula. This formula is
simpler because it doesn't have an initial velocity. You're
kind of acting as if you just drop something from
max height. [inaudible]
[inaudible]
divided by covering your face. All right. You
all have like two more minutes and try to figure
this out on your own and then we're gonna try
to do it as a class. Okay? I'll
get you all to help me do this as a
class. [inaudible]
So yeah. All right. You all have like
two more minutes to try to figure this out on
your own and then we're gonna try to do it
as a class. Okay. I'll get you all
to help me do this as a class disorder.
It's the Yeah. Instead of being you're kind of
working the problem you're saying? I want to feel
that. Yeah, but the problem because the problems
that people are doing a long time exactly. When
you actually okay, don't make progress. I know
you probably have more time. You'd all get it
on your own but I want to make sure we
do this together so that we can do the final
experiment together and just believe. Okay. Yeah,
I am. But I'm not able to get coins
. Yeah. Yeah. Just right. I can't
drag something like that. Okay. Yeah. Where's
my page. Okay. What do you think is
a good number. No, I don't want to
leave the screen 80. It's going to depend on
the gravity, which we don't know, but I'm
gonna say 70 might be a good middle number.
I'm the Red one. So we're gonna do our
gravity experiment and we're just gonna see. We just
need to we need to measure the amount of time
with the shots in the air and we need to
measure the max distance. Okay, Now I understand
. Let's do the total time from shot to coming
back down and hitting myself because we can divide by
two, we'll get a more accurate measure. Okay
, you're going thank you. Thank you. I
don't know what to do about that. Well,
I wanted to get down here so that the green
guy wouldn't shoot me. And also so that I
would have more I think what I'm gonna do is
I'm gonna go ahead and a move them a little
bit, but I'm gonna go ahead and shoot the
shot, which we'll see if our 70 is a
good approximation. Even if it blows off the screen
, the wind will change after the shot and then
we'll maybe get it the next time 70 looks pretty
good. Maybe I can feel a little higher right
? All right, I'll go a little higher.
Let's get this guy, that guy is pretty good
actually, it's better. Nice. Oh not safe
. Mhm. I guess I can go up to
100 to make it a nice number. Okay,
so is the wind? It's worse. Yeah man
. Maybe if you just do since she was approximately
before. Uh huh. I guess I will have
you know, I ran out of gas. I
get ready on the stopwatch in case we're ready this
time. So I'll say shot and then I'll say
stop. Okay. Ready? Sure. What's it
going to mars? Yeah, I wonder whether I
can switch. Okay. I tell you what I'm
gonna do. I'm going to restart it and then
and then I'll get a better situation. Sorry,
I have I did that passing. Reload the page
. Okay, Sorry, y'all? No, to
this. Yeah. Okay. Ran that terrain.
Desert terrain was uh we don't want to hear.
Okay. Yeah, yeah, yeah. Mhm I
appreciate that. I've been looking at your screen,
but I haven't actually been playing the game. Okay
. So I guess I'll just leave things like they
are. So, here's my experiment again. And
I'm gonna I'm gonna start off at 70 once more
and hopefully that the United States. Thanks. Okay
, Here's we're ready on the stopwatches. First cow
measuring I'm measuring for Okay, ready. Start.
We're not done my dog. All right. Mhm
. Free throw. All right. You need write
those down. Should we do the experiment again or
anything that was accurate? It's not good. That's
right. The point. What was that organization?
The bees, 10 or the highs? The mountain
dropped from the top 10" and it dropped to the
bottom in their number divided by two. What was
your number? Good point 332. So that's 1.56
This one point No, I want 1.66. Oh
yeah okay I'm ready. Yeah. All right.
Uhh Actually yeah, let's do the experiment one more
time because I don't want this guy to shoot me
. Um Let's do the experiment again just to make
sure we got an actual packet reading. I'm gonna
show you that it turns out we won't have to
do. No, that's right. Yeah. Let's
go wait. So well just editor, how are
you? Oh, I get there is a problem
there. Be sure just because the winds on fire
before the usual. Yeah. Yeah, it's a
good strategy. We'll be able to shoot any tank
wherever it is on the first shot. Okay.
After we figure out these two experiments, after we
figure out gravity after we figure out this units conversion
. Everything else we know how to do actually did
something very similar in the last problems that so what
strategy still happen. Yeah. So she caught a
last time Shot a bullet like straight up at 90°.
And you can only select like 67. The guys
around 1.8" I guess. So we measured how high
it went up and then fell down time until incident
. You can take of inches per second. So
it went up 1.8" at 1.5 seconds. You measure
how long it took to go up there. Right
, okay. Now how is that going to help
you do the conversion? Because we measured how high
it went in the first time it took. So
we took the 1.8 inches divided by 1.5 seconds.
And that told you how many inches per second is
moving. That told us how many inches per 2nd
67 power. And we said that the power is
unions. What do you think about that? I
think you just make another ratio of like if 67
is 1.8 or 1.5 you can do like 78 equals
something or something. So he's saying OK, the
distance was 1.8 in divided by 1.5 seconds. That
gave him a velocity and then he's saying that if
I set that equal to the units per second,
the power shows 67, then you can get a
conversion. There's one problem with that gonna be a
fatal problem. Mhm. We can't you can do
it but you're setting up a false equation. The
reason it's false is because that's 16 or 68 represents
your initial velocity. He's talking about a different velocity
. He's he's talking about an average velocity from shot
to stop it. So so from the start to
the end, he's getting an average loss and he's
setting equal to it doesn't have that perfect relationship with
wind resistance. The wind will effective but the wind
is not going to totally dominate its position because it
has it has enough has inertia from staying, staying
put, and it doesn't have perfect wind resistance.
It's some of that wind pressure will kind of go
around the object, so.