3D Moment About a Point – How to Solve Cross Product of Two Vectors

2 Cross Product Example Problems demonstrate the most common real world applications of 3d Moment About a Point problems which are piping systems and towers with cable supports.

I demonstrate two different methods for how to solve cross product of two vectors. The first method is commonly taught in textbooks. I didn’t invent the second method, and don’t know its origin, but it’s the one I strongly recommend that students use.

TIMECODES
0:00 Real World Applications
0:50 Position and Force Vectors
2:05 Cross Product – Lame Textbook Method
3:15 Cross Product – Cool Method
4:11 Right Hand Rule for Moments
5:36 Example 2 – Different Position Vectors, Same Answer