Can someone check if this centripetal force is correct?

[Blockade]

I don't know if my ΣF_in is correct I am having trouble setting it up. Can you check if the new diagram and the component setup is right?

Problem:

Work:

 

[PhanthomJay]

I don't know if my ΣF_in is correct I am having trouble setting it up. Can you check if the new diagram and the component setup is right?

Problem:

Work:

looks very good except at the very end you made a couple of math errors when solving for T2( forgot to subtract out the mg/root 3 term and the 1/2 factor in the denominator was overlooked. ).

 

[Blockade]

looks very good except at the very end you made a couple of math errors when solving for T2( forgot to subtract out the mg/root 3 term and the 1/2 factor in the denominator was overlooked. ).

Oh wow, nice catch. Thanks!