(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

2. Relevant equations

M = F*r

3. The attempt at a solution

I tried splitting each force into its xy components and solve but the answer is wrong. Here is my attempt:

For point A:

Horizontal moments:

(3 * cos 25) * 5.4

- (2 * cos 30) * 4

Vertical moments:

- 4 * 1.5

- (3 sin 25) * 4.5

Then add them to determine the final moment and I get -3.9513 kNm but it's not the same as the correct answer which is -19.46 kNm.

What am I missing?

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# Homework Help: Moments about a point (statics)

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