Need helping better understanding mechanics

[mighty radish]

Ive attached two images, the question itself which isnt really needed here, and a diagram of the question, my problem comes with the forces, I resolved the weight (green arrow in the middle) and got a component of the weight which creates a torque (orange line) taking the base of the red rod/ladder as a pivot, which is balanced by a component of the reaction force (blue at the top of the rod/ladder) which is the torque in the opposite direction (orange line at the top of rod)
my following questions are

1. the vertical and horizontal forces both have a components (pink lines and orange lines) in the same direction, but a perfectly vertical force cant interact with a perfectly horizontal force, or can they since its on an inclined plane?
2. if you keep resolving the vertical force, you can eventually end up with a horizontal force? how come you can do that?
3. the reaction force at the pivot point (green at base) is equal to the weight of the rod (green at middle of rod), but a component of the weight (orange line) is balanced by a component of the reaction force (orange line at top of rod) so if the wall already removes a part of the weight how come the reaction is still the weight? and how can the horizontal reaction by the wall even affect the weight?

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[glad stump]

you're resolving them in the direction of the rod so they will interact in the prespective of the rod

and for the resolving to give horizontal forces

[mighty radish]

i came to a conclusion that the moment a force produces is completely independent to forces themselves, and idk if that’s right it just makes the most logical sense

but in regards to your diagram specifically, the forces are perpendicular so they shouldn’t affect eachother then either?
i also realised i can’t just resolve forces without considering context or what they apply to, which also answered parts of my other question

[glad stump]

when you resolve both of the resolved forces, the horziontals cancel out

[mighty radish]

oh wait really ?

[glad stump]

yes they should

[mighty radish]

one second

let me try

[glad stump]

they wouldn't affect each other, if you were looking at the prespective of the x,y axis

but you're looking in the prespective of the rod

[mighty radish]

they do! of course they do! that makes so much more sense thank you

[glad stump]

np

[mighty radish]

but they’re still perpendicular aren’t they? even from the perspective of the rod? from what i’ve heard moments produced by a force have no affect on the force, so if you took the diagram and didn’t hinge the rod at any point, the forces wouldn’t interact with eachother at all, which makes complete sense, you’d just have a floating angled rod going down and to the left across space

[glad stump]

in the prespective of the rod,

it isn't left and up

it's diagonal

these are the axis of the prespective of the rod

if the rod were completely horizontal

you're right the forces wouldn't interact

[mighty radish]

no i understand, but the forces, even in the persepective of the rod, form a right angle, so there wouldnt be interaction between them

oh wait

[mighty radish]

u said this

i shouldve scrolled a little further lmao

[glad stump]

they would interact though?

[mighty radish]

wait what

i thought we just agreed

oh we didnt

[glad stump]

what do you mean by "they don't interact"

in terms of torque?

[mighty radish]

no, in terms of force, theres no component of the horizontal force that affects the component of the vertical force, but with torque its different

[glad stump]

so in terms of force that'd be true

[mighty radish]

yeah perfect, we're on the same page again

you've been a very big help thank you very much

[glad stump]

and i think your 3rd question is the same as the 2nd

np

[mighty radish]

how do i give + rep or whatever it is

[glad stump]

can't im not a volunteer helper

[mighty radish]

ahhh

well thank you anyways! have a good day!

[quiet flame]

@mighty radish

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[mighty radish]

+close

[quiet flame]

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