Did I make a mistake in my balance force equations for homework?

AI Thread Summary
The discussion revolves around calculating base reaction forces at points A and B using given parameters, including distances and an applied load. The user initially expresses concern about obtaining unrealistic answers from their balance equations. After reviewing their calculations, they realize they made a mistake and confirm that their revised approach is now correct. The thread concludes with a suggestion to mark the discussion as solved, indicating resolution of the issue. Overall, the user successfully navigates through their confusion to arrive at the correct solution.
rihitz
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Homework Statement


IMG_20160929_152147.jpg

Given:
a=10m
l=18m
P=18kN
angle alpha = 35 deg

The task is to calculate the base reaction forces on A and on B

Homework Equations

The Attempt at a Solution


IMG_20160929_152431.jpg

This is my attempt on creating the balance equation system.[/B]
When replacing the variables with numbers, and trying to solve the equations, I get , in my opinion , unrealistic answers.

Is there any mistake this far?
 
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rihitz said:

Homework Statement


View attachment 106648
Given:
a=10m
l=18m
P=18kN
angle alpha = 35 deg

The task is to calculate the base reaction forces on A and on B

Homework Equations

The Attempt at a Solution


View attachment 106649
This is my attempt on creating the balance equation system.[/B]
When replacing the variables with numbers, and trying to solve the equations, I get , in my opinion , unrealistic answers.

Is there any mistake this far?
No.
 
Chestermiller said:
No.
IMG_20160929_154916.jpg
So this is correct as well?

I guess I found my mistake.
 
rihitz said:
View attachment 106651 So this is correct as well?

I guess I found my mistake.
Maybe you want to mark the thread Solved.
 
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