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junior college 2 | H1 Maths
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regina ng
Regina Ng

junior college 2 chevron_right H1 Maths chevron_right Singapore

How do i do this? I need help as none of my classmates know how to do

Date Posted: 1 year ago
Views: 276
Boy Mow Chau
Boy Mow Chau
1 year ago
250 and 500 are incorrect.

consider balance of forces.

since net force is 0, can rearrange the 3 force vectors to form a triangle, then it is very clear that ...
Fnorm = Fgrav x cos 30 = 433.

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Gerry Lim
Gerry Lim's answer
33 answers (Tutor Details)
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