The reason why the direction was not taken from point O is the moment is to be taken about line AB, which means our reference position must be any point on the line. But to make it simply we just use point A or B as references. Any of the two works. I used point B, you can try with A and you'll realize that it's the same answer you will get. Hope you understand.
@@SkanCityAcademy_SirJohn sir then if you take reference point as B .shouldnt that r(BC) instead of r(OC) .so rC = 4i+2k Because M(AB) is projection of M(O) on AB Axis ,thats what you said
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You have no idea how incredible and helpful these videos are, thank you so much!!
You are most welcome
why is rc taken from B Not the center O, cause i thought r is the distance o from the center perpendicular to any part of the force
maybe a mistake, i'm not sure. I was wondering the same.
Why is that the r wasn’t directed from O to the line of action of the force but B rather
The reason why the direction was not taken from point O is the moment is to be taken about line AB, which means our reference position must be any point on the line. But to make it simply we just use point A or B as references. Any of the two works. I used point B, you can try with A and you'll realize that it's the same answer you will get.
Hope you understand.
@@SkanCityAcademy_SirJohn sir then if you take reference point as B .shouldnt that r(BC) instead of r(OC)
.so rC = 4i+2k
Because M(AB) is projection of M(O) on AB Axis ,thats what you said
Why was the unit vector of x i?
Kindly note the time stamp so I check and respond accordingly