Gerry Lim's answer to regina ng's Junior College 2 H1 Maths Singapore question.

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Gerry Lim
Gerry Lim's answer
33 answers (Tutor Details)
1st
Detailed answer here. If you know how to draw free body diagram, actually most calculations here are redundant. This is just to show why the other 2 options are mathematically wrong. Correct ans is 433N