/sci/ - Science & Math

[Anonymous No.9306779]

I'm in an open book physics exam right now and I know nothing.
Is anyone interested in helping a desperate anon?

[Anonymous No.9306804]

Fuck it, go on. What do you need to know?

[Anonymous No.9306822]

I'd suck your cock anon.

[Anonymous No.9306831]

>>9306779
Nigga, stop cheating and posting on both reddit and 4chan, accept your F and just study next time.

[Anonymous No.9306832]

[Anonymous No.9306835]

>>9306779
Kill yourself.

[Anonymous No.9306845]

>>9306831
Easy for you to fuckin say you're stuck in the middle of an exam you have to pass.

[Anonymous No.9306862]

>>9306845
You fucking nigger, I actually study for exams you cheating piece of shit. What fucking school do you go to anyways that even does open book exams? Fuck you, I hope you get caught.

[Anonymous No.9306871]

>>9306822
Here you are. Read the filename. That's what you are
Giving this to you because I'm procrastinating massive lab report due for tomorrow morning

Right:
Force up due to the tension of the rope is
F_up = 8cos(50) = 5.1423 N
Downward force due to gravity mg = 0.3 x 9.8 = 2.94 N
Net upward force = F_up - mg = 2.2023 N
If, from that, you can't get the net magnitude of the force, you shouldn't be sitting that exam.

[Anonymous No.9306913]

>open book
>exam over internet
>smartphone allowed

is this us education?

[Anonymous No.9306943]

>>9306831
>>9306862
these t.bh

[Anonymous No.9306975]

>>9306913
>https://iseri.eu/
Nope, glorious eurocuck education.

[Anonymous No.9306986]

>>9306822
>>9306832
>"""""superior"""" European """"education"""" revealed
lmao, I thought you lying cucks learned this in 1st grade.

[Anonymous No.9306997]

>>9306986
This. I thought euros knew Analysis and Hamiltonian Mechanics before getting into college

[Anonymous No.9307067]

>>9306832
Senpai, if you've really got 13 hours to do this, you'll be fine
Anyway:
For m2
[eqn]F_{m2} = Fk_{m2}[/eqn]
Since [math]Fk = \mu _{k} N[/math]
[eqn]Fk_{m2} = 0.2 \times 20 \times 9.81 = 39.24
[/eqn]
Now do exactly the same for m1, except this time you consider the vertical component of the normal force
[eqn]F_{m2} = 0.2 \times 10 \times sin(65) \times 9.81 = 17.78 [/eqn]
Now just add the forces and get 57.02
Was there some value for g they wanted you to use? That's pretty close to 59.2, especially if you use something more like 10ms^-2 for g

[Anonymous No.9307076]

>>9306822
i-is this highschool physics

[Anonymous No.9307084]

>>9307067
wait, what about the tension?
I fucked up then

[Anonymous No.9307091]

>>9307084
massless rope, frictionless ring?
If there's no coefficient of restitution or nothing given its generally safe to ignore it

[Anonymous No.9307098]

Don't help him bros, let the brainlet fail and eventually commit suicide so that his inferior brainlet genes will be weeded out of the gene pool.

[Anonymous No.9307102]

This is literally high school physics. I took a class like this my first semester of university as an engineer because I didn't take any physics in high school.

[Anonymous No.9307103]

>>9306832
>Erkut İnan İşeri
>Student/Öğrenci
dumb roach

[Anonymous No.9307169]

>>9306871
You forgot the horizontal component of the force due to the tension.

[Anonymous No.9307201]

>>9307169
I didnt. I said he should get the total magnitude for himself. I just did the """" hard part"""" for him. Getting it is fucking easy from there if he follows a similar procedure to the vertical one.
But yeah, if I were to go back and include that in my post, I would have. Seems a bit open ended on my part.

[Anonymous No.9307206]

>>9306871
>Net upward force
>if, from that, you can't get the net magnitude of the force
Not that anon but they did make that fairly clear

[Anonymous No.9307213]

>>9307102
You're probably right, I imagine this is literally high school physics, are you just surprised there are people in high school?