Express force F as a Cartesian vector; then determine its coordinate direction angles.

[@TheHassanLatif]

paused the video towards the middle only to comment about how much i appreciate these awesome clear cut videos. LOVE YOUR WORK.

[@asifahmed6367]

hey I am glad that you put out these videos, but I think it would be great if you focus more and give details on how you find the components of A and B. because to me, that is the trickiest part honestly.

[@mxryaamaahmed8523]

Me tooo I have an exam tomorrow and that is the only point I don't understand, how to find the components

[@Yspclicks]

2:00 A(xy) = F • cos(70°) A(xy) = 135 • cos(70°) = 46.2 I thought F = 135lb so we would use that... someone clear my confusion 😂

[@Angle-fu8xe]

He found the force vector through a different method (obviously a method not involving F). However, the method I know uses F. The way I do it is, after you find AB you find the unit vector of that then multiply the components (i,j,k) by F which is 135. Either way you get the same answer.

[@stephenadu4600]

PLEASE WHY WAS THE F(xy)= 3.42

[@kingsleyekechukwu8229]

for f cartesian u can also just multiply the F which is 135(AB/magnitude of AB) still get the same answer

[@AlexanderSimon-pq9kw]

Could you give an explanation as to why it isn't possible to take the AB i j k components and divide them by magnitude of AB?

[@rickychansa5118]

That can work too. It's the one I find to be straight forward.

[@jacobp3367]

Thanks for the help!

[@zamanarain9759]

how u find projection of A

[@zamanarain9759]

thanks bro

[@238xblaze]

To get the z component you would take the sin, think of the projection as the opposite, so you would do cos. The projection of the xy plane and the z are either the cos or sin, so if you know one then you know the other.

[@astr0samus]

10(cos70)

[@InsanelyDusty]

why is it b-a

[@rampant5139]

because it's end - beginning, B is the end and A is the beginning of the vector