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Complex numbers! (1 Viewer)

Aysce

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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

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

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