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2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

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2343141 No.2343141 [Reply] [Original]

Do it.
Also, only take in account vertical movement.
Couldn't solve it in today's test

>> No.2343148

bump

>> No.2343162

Underage b&

LRN to constant acceleration equations

>> No.2343178

Initial velocity is 0.

>> No.2343180

>>2343141
This is basic kinematics, what most people learn in 10th grade. Get the fuck out "/b/ro".

>> No.2343250

>>2343141
what does acting like an asshole prove?

>> No.2343280

y = y0 + v0*t + 1/2*g*t^2

Since gravity points down, I'll make it negative.

0 = 600 + v0*21.305 - 1/2*9.8*(21.305)^2
v0 = 76.2 m/s

>> No.2343315

wow must feel shitty to be so stupid OP.

>> No.2343325

Also if you are percieve yourself as my "/b/ro", then get the fuck out of my face.

>> No.2343335

>>2343180
This; except I'm sure it was taught in Grade 11 in my area.

Anyways, do your own work OP.

>> No.2343349

Made me feel nostalgic.
Oh grade 11 physics.

>> No.2344568

Fuck you guys. I'm at Stanford and I have never taken physics until this semester. Shit is raping me hard.

>> No.2344584

Seriously, purchase or download a book on this shit, if this is giving you trouble you'll be fuckstained later on.

>> No.2344634

>>2344584
Could you please give me some recommendations? I'd be interested in anything at all that will help.

>> No.2344670

>>2344634

http://www.freebookspot.me

get all physics books.

>> No.2344700

>>2344670
No, no. I'm not asking where to download them. I'm just interested in any particular text you found really helpful or is better quality than most.

>> No.2344707
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2344707

>>2344568

>Stanford
>Shit is raping me hard.

Enjoy dropping out first year. You really can't figure out something this simple?

>> No.2344727

Sorry, i don't think the books we are using would be best for you. maybe go to amazon.com and read the reviews to find something useful, I truly hope you buy some books, to improve your general understanding of general theories, and shit.

>> No.2344737

>it's like the second week back to school
>homework threads already

You guys sure hit the ground running didn't you

>> No.2344747

>>2344707
Hey, fuck you. We're moving 1 chapter a day. By raping hard I mean I'm barely able to keep up. I would like to be confident and be ahead even.

>> No.2344772

>>2343141
i'll give this shit a go, its been a while since i did this kind of stuff...
height of object = V0 * t - g*t²/2
when is height = -600
21.305*V0 - 9.8*21.305²/2 + 600=

V0= 76.2321m/s

http://www.wolframalpha.com/input/?i=+21.305*V+-+9.8*21.305%C2%B2%2F2+%2B+600%3D0&a=*C.V-_*Varia
ble-&a=UnitClash_*V.*Volts.dflt--

>> No.2345114

V = SQRT (t^2 G^2 / 2 - H G)

t = 21.305
G = 9.8
H = 600

V = 126.16 m/s

>> No.2345324

h = height of building
T = total time
s = time to top of arch, also time from top of arch to top of building.
u = time from top of building to ground
G = gravity acceleration
V = initial velocity

2s + u = T
V = Gs
h = 1/2 * G * u^2 + V u

Solve those three equations

s = V/G
T = 2 * V / G + u
u = T - 2 * V / G

h = 1/2 * G * (T - 2 * V / G)^2 + V(T - 2 * V / G)

h = (G * T^2)/2 - T V

V = (T * G / 2) - (h / T)

V = 76.23 m/s

>> No.2345354

>>2344772
This guy

>> No.2345359

s= ut + 1/2At^2

solve

s = displacement
t = time
a = acceleration
u = initial velocity