In the diagram above, MN is perpendicular to ON and MR what is the difference between the moment about N of the force of 20 Newtons applied along MP an its moment about O.
Correct Answer: Option A
There is absolutely no need to go through any calculation for this question! Since Moment of force = Force × Perpendicular distance and looking at the diagram carefully, you will notice that point O and point N are at the same perpendicular distance to the 20N Force. So, it simply means they will have the same moment, so their difference will be zero!
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