Applied Mechanics question 2?

Sorrry i accidently posted the wrong link thats y i was confused by peoples answers in my other questions. But yea im doing first year engineering and this question i got from my applied mechanics course yet i cant seem to work it out. Is it resolution of forces? anyway could someone please do the question and show... show more Sorrry i accidently posted the wrong link thats y i was confused by peoples answers in my other questions. But yea im doing first year engineering and this question i got from my applied mechanics course yet i cant seem to work it out. Is it resolution of forces? anyway could someone please do the question and show clearly how they got the answer. thanks a billion (triangle is a ratio)
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