Complex numbers! (2 Viewers)

[Aysce]

guise can I have a clue on how to do this?

I've tried so many different ways but I can't get the answer...

Here are the forces I've resolved (@ denotes theta):

Vertically: Fsin@ + Ncos@ = mg

Horizontally: Nsin@ - Fcos@ = (mv^2)/r

 

[Carrotsticks]

If the particle is NOT moving, then why do you have mv^2/r ...

 

[Aysce]

Aw shit. Thanks