Help finding the vertical component of the reaction at C

[mcrooster]

Homework Statement

Finding the vertical component of the reaction at C

Relevant Equations

E of E

Hello everyone,

For this equation, I have found Ay as 0.677kN by using Ma = 1.5kN(7m)-Ay(15.5m).

To find Cy, would I be using the sum of forces to find the answer?

For example Fy = Ay - F2 - F1sin55 + Cy = 0
This would then get Cy answer as 2.05kN

 

[haruspex]

This would then get Cy answer as 2.05kN

Looks right.

 

[Steve4Physics]

Hi. Method is fine but pay attention to detail.
E.g. Don't use 'a' for 'A' (as in 'Ma'). Don't forget to say MA equals 0. Personally I would just say 'moments about A' rather than 'MA'.

For this equation, I have found Ay as 0.677kN by using Ma = 1.5kN(7m)-Ay(15.5m).

So it would be clearer to write the equation as (for example):
1.5kN(7m) - Ay(15.5m) = 0 (moments about A)

I would use one or two additional significant figures for intermediate-step answers (e.g. Ay = 0.6774kN). This reduces accumulated rounding errors in later steps. Round final answers as appropriate at the end.