Sum of MOMENTS and Rigid Body Equilibrium in 13 Minutes! (Statics)

Statics lecture on Rigid Body Equilibrium (rotation of bodies), finding reaction moments and using external couples in static structures. Moments explained!

00:00 Particle vs Rigid Body Equilibrium
00:40 Moments & Rotational Equilibrium
01:45 Orientation of Moments
03:23 External and Reaction Moments
05:06 General Procedure Example
06:04 Diagonal Forces on Moments
07:24 Support Types Reactions
10:29 Lecture Example

Moments as Cross Products (in examples 2 and 3).

Next Lecture:
TRUSSES - Method of Joints & Method of Sections in 12 Minutes!

Previous Lecture:
FREE BODY DIAGRAMS and Particle Equilibrium in 9 Minutes! (Statics)

________________________________________________
Statics Course Links:
WATCH ALL STATICS CONTENT IN LESS THAN 2 HOURS!

Two and Three Force Members: coming soon
Machines: coming soon
Second Moment of Area (Inertia): coming soon
Mass Moments of Inertia: coming soon

[keremozkan]

Absolutely amazing video that helped me understand in 15 mins what I've been struggling with for hours. Thank you very much!

[cambocowboy]

How are there only 400 likes to these videos ? ? ? Excellent animations coupled with clear explanations. Rather than having completed equations just appear on the screen, I've discovered that graphics, animations, and equations need to be written out while they are being explained in order to help one grasp the meaning. This is one reason why it was so much easier to sit in class and go through a lecture with the teacher writing out steps on the board (preferably chalk, for some reason), instead of today's presentation of: Boom! completed solution! I think your mind needs the journey of hearing concepts, expecting an equation (chart, diagram, etc.) and then witnessing that fuzzy concept become solidified. I also really like the color differences. Though brief and not a complete replacement for the book and full lectures, they have clarified much of the material I'm going through. Can't say enough good stuff about these videos. I hope he does more ! ! !

[icelordotis]

This channel is amazing, keep up the great work!

[mathewkazemi]

Very clear explanation, thank you very

[HazzCraft]

consise and clear explaining, cheers for this good work!

[maxcronin]

fantastic presentation of info really class

[hvefieg]

5:48 why is the red line negative for sigma Ma? I thought the force trying to push the body counter clockwise should be positive?

Edit: NVM, i figured it out. I imagined drawing a wall at the point of reference and assert the +/- sign in accordingly.

[pariwarthanpatel]

The last diagram how did you get that x component and y component of F3