Find the moment of a force about a point

This engineering statics tutorial goes over an example of how to find the moment of a force about a point.

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Thanks for watching, I hope it helps!

[REDandBLUEandORANGE]

Wow engg stuff
You just earned yourself a view on every video over this weekend if I can get them all done

[nitulpatel]

Very helpful. Thank you. keep making such videos.

[REDandBLUEandORANGE]

This is exactly what i was looking for

[jaredcook]

love the Canadian accent man, thanks for the help

[LifeBloodMarketing]

Billy May's here, with another fantastic solution, a bent metal hook.

[blancacalderon]

A little confused about the right-hand rule for the cross product you said that your thumb is point into the screen? can you please explain?

[shivanishastri]

At the end of the cross product, why did you do the part with the [001] and why is the unit vector for moment in the Z direction? I thought this was only 2d motion so I'm a bit confused.

Edit: I understand using the right hand rule, the cross product is in the negative Z direction, but I am just confused about how this relates to the moment. Does this mean the moment is in the Z direction instead of in the clockwise direction?

[lanvu]

if I know vector F and its moment about a point, is there any way to find coordinates of that point?

[venkateswarluponduru]

sir u have mentioned ccw direction as negative but we are supposed to rake ccw direction as +ve right

[APaleDot]

Why does this work for any point along the line of force? Doesn't changing one of the vectors in the cross product drastically change the result of the calculation?

[dayanandharal]

in clockwise sense why moment take negative instead of positive . but in force it take positive plzz anss

[k-loops]

Do the answer differ when you use the slope instead of x and y components?

[wahkilla]

Why does the bracket, when pulled only in the x direction at the point of the force, tend to rotate the bracket downwards?

[JOEV-hovx]

This got me good marks on y engineering

[REDandBLUEandORANGE]

For the cross product could I pick a point along the x or y axis as long as it is along the force line?

[rajivunome]

How do you know where to put the x and y coordinate?

[Godsent]

Is Fy correct?, isn't in negative direction?

[jaredschmidt]

I keep getting different answers when I plug in "500cos30". How are you getting those?

[Bigpetter]

Hey, for the vector approach why is only the Fy negative and not the Fx because before, to get our answer using Ma = fd we had to have both Fx and Fy components negative.

From what I learned, I know the J product is always negative when using cross product but Im assuming that isnt why you did that since the 2 for r is still positive. If you can explain I would greatly appreciate it.

[sciworld]

Sir please help me:
The formula of moment is
M=f×r
So here why we use.
M=f.d
As moment is a vector quantity...!
Please answer