How do I get the forces of ->A, ->B and ->C?

[Anonymous No.12210940]

Need help to solve this. I want to find the forces stored in A, B and C but don't know how.

[Anonymous No.12210942]

What have you tried?

[Anonymous No.12210946]

>>12210942
Shit wrong picture

[Anonymous No.12210947]

pro tip: write vectors as [math]\hat{\mathbf{x}} x + \hat{\mathbf{y}} y[/math]. ignore the boldface when writing by hand, the hat is enough to distinguish vectors. adding two vectors is obvious this way

[Anonymous No.12210950]

>>12210940
>>12210946
fucking zoomers

[Anonymous No.12210960]

>>12210940
>>12210946
rotate the image for proper viewing if you want our help. we aren't tilting our heads sideways for you

[Anonymous No.12210967]

>>12210947
where do you see a boldface and how do i properly apply that notation
not OP though

[Anonymous No.12211028]

>>12210960

[Anonymous No.12211030]

>>12210946
shit dont move lmao

[Anonymous No.12211036]

>>12211028
Kid if you can't solve this, then you might need to switch your school course and go for something more humanistic.

[Anonymous No.12211040]

tell us what you are thinking OP. that way we can gauge just how fucking retarded you are (but seriously, tell us what your thought process is)

[Anonymous No.12211049]

>>12211028
P>>12211040
I haven't had the time to study mechanics. >>12211036
Im retarded, but Im trying to find the force stored in point A, B and C but I don't know how. im retarded but please help me

[Anonymous No.12211054]

>>12211049
There's hardly anything to study here other than precalculus math, I bet you aren't even in Uni.

[Anonymous No.12211067]

>>12211049
you are studying statics. that means nothing moves. that means all forces and torques at all points are zero. i want you to draw the free body diagrams at each point listed, and write the algebraic expressions for the torques at all the points due to forces elsewhere. we'll go from there

also, pro tip, use a '.' as a radix instead of ',' you savage

[Anonymous No.12211068]

>>12211054
I took summer classes and passed, but yes I lack precalculus and geometri knowledge. Please be help me. I will not waste people's time again.

[Anonymous No.12211074]

>>12211068
in statics all total forces and torques are zero at all points
[eqn]\sum_i \mathbf{F}_i = \mathbf{0}[/eqn]
[eqn]\sum_i \boldsymbol{\tau}_i = \mathbf{0}[/eqn]
torque is defined as
[eqn]
\boldsymbol{\tau} \equiv \mathbf{r} \times \mathbf{F}
[/eqn]
in your problem, all the forces are perpendicular to the forces, so the cross products reduce to multiplication

i can't actually read your figure to go farther. clean it up first

[Anonymous No.12211088]

>>12211074
I can write the numbers if it may help.

q1= 16kN/m
M1= 57 kN/m
->Q1=(0, -128) kN/m

->D=(0, 19.2) kN/m
->D= (0, -19.2) kN/m

->A=(0, Unknown) kN
->B=(0, Unknown) kN
->C=(0, Unknown) kN

Thats the numbers. I do not understand how to find the answer.

[Anonymous No.12211100]

>>12211074
Here is one better drawn

[Anonymous No.12211158]

bump

[Anonymous No.12211258]

>>12211088

Select on point, around which you will suppose everything will turn. Let's say you choose point A and you will make everything turn clockwise around it.

Check the direction each of the other forces will try and turn the bar around A. Get the torque from each of these forces in relation with point A. The sum of all of them is ZERO, so your equation will be something like T1+T2-T3-T4+...=0.

Notice that you can do this fixing any point. It is usual to pick a point that you don't know much information about, because it will not show up in the equation to solve.