Statics: Using Double Projection method to break a 3D vector into xyz components

Walks you through how to break a 3D vector down into it's x,y, and z comp using the "Double Projection" method.

Make sure at the end, you manually put the correct signs on your components. In this case, I forgot that the y component is pointing in the negative y direction, and thus should be a negative "j-hat" component

Note that the equation "A=..." is the general equation for double projection. Do not associate it with the example problem above it

[sahibhara]

First video that genuinely helped me understand this. Thank you so much!

[catherineblandon]

Thank you so much I have been stuck on this for a while. What a relief!

[userutoob]

In the formula that starts "A = " shouldn't the coefficient of the k unit vector be sin phi (instead of cos phi)?

[La_Tabda]

sorry to necro but im pretty sure the j component is supposed to be -44.5, other wise great vid and i agree with you 100%, no reason to memorize that formula