Did i do this question completely wrong? (Statics-moment)

[lc99]

Homework Statement

Homework Equations

The Attempt at a Solution

I had this question on my final exam and i think i got the wrong numbers because i converted the mm into meters for all of them. So i kept F=3kN , 450N*m , and 3kN as is and used meters instead of mm for the lengths. Would this affect my final answer?

 

[haruspex]

Homework Statement

View attachment 225356

Homework Equations

The Attempt at a Solution

I had this question on my final exam and i think i got the wrong numbers because i converted the mm into meters for all of them. So i kept F=3kN , 450N*m , and 3kN as is and used meters instead of mm for the lengths. Would this affect my final answer?

What was your final answer?
If that was your only mistake, you should get some worthwhile credit.

 

[PhanthomJay]

Changing mm to m is fine but if you use force in kN, then your 450 N-m couple should be converted to 0.450 kN-m. Did you do that?

 

[lc99]

What was your final answer?
If that was your only mistake, you should get some worthwhile credit.

For normal force A , i got like -474 kN . So basically i got the wrong support forces and so i used the wrong numbers.

 

[lc99]

Changing mm to m is fine but if you use force in kN, then your 450 N-m couple should be converted to 0.450 kN-m. Did you do that?

Ahh man. I did not do that. Uhgh. No wonder nothing matched up.

I did all the steps that needed to be done like finding the equations for shear and bending moments. But it just did not match up with the actual problem. UGH