Moment of a Force | Mechanics Statics | (Learn to solve any question)

Why would you take clockwise as positive? Generally we always take anti clockwise as positive. Secondly, when you resolved the force vectors into components, why did you draw their components the way you did?

For the first question, when solving the moment for M3: Shouldn't it be -300n(5m)+400N(4)?

at 7.30 1800 should be positive

where are the negative signs?

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In the first problem, why does the x component of F3 create moment if the direction of the x component is parallel r to the line of action on A?

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For question 2, why the solution for Ma is 35(0.9) +60.62(0.7) ?? not 35(0.7)+60.62(0.9) ?

That wrench would create zero moment in real life

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In example no 4 moment of force about point B not A😊

How come the y component is not negative because it's acting down

Great video! Really helped me wrap my head around this. With the curved rod question, wouldnt the k-value of the cross-product be -256.68k? ((4 x -64.17)-(0x21.39)=-256.68k) Otherwise it wouldnt be perpendicular to the plane created by the two vectors.

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why clockwise is positive? is it negative?

A uniform metre scale of mass 200 g carries of a block of mass 800g at one of its end .At what distance from the same in end does does a knife and balance the scale?

i had a doubt the anti-clockwise is taken to be positive or negative . ( my txt book says positive )

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Is not clockwise the negative moment instead of positive?

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Thanks for your help in this topic was wondering that isn't turning clockwise should be negative?

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how can we know when to use sin or cos in the forces?

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Anti clockwise is positive