Rigid Bodies Absolute Motion Analysis Dynamics (Learn to solve any question)

Learn how to solve rigid body problems that involve absolute motion analysis with animated examples, step by step. We go through angular velocity, angular acceleration, time derivatives and more.

Introduction (00:00)
At the instant θ = 50° the slotted guide is moving upward with an acceleration (01:48)
At the instant shown, θ = 60°, and rod AB is subjected to a deceleration (04:27)
The bridge girder G of a bascule bridge is raised and lowered using the drive mechanism shown (05:54)

Book used: R. C. Hibbeler and K. B. Yap, Mechanics for engineers - dynamics. Singapore: Pearson Education, 2014.

[daxthedestroyer]

I'm in dynamics right now and these videos are awesome! You explain what my teacher took 2-3 hours explaining, and did it in 8 minutes... thanks!

[syabongajele]

wow Sir you're so incredible wow this is so amazing, you just simplified the whole topic in 8 minutes while my professor did this two hours still not vivid,


sir do you have a pack of problems and exams sheets?

[atakanerdemli]

You are the best ! I am an aerospace student and so far I found everything I needed for my lectures. Keep it up. Good job, thanks!

[DiZBrad]

Definitely better than my Dynamics professor could EVER explain!

[rhamby]

These videos are so helpful. It's funny how you teach better than the professors that I'm paying thousands of dollars for. definitely subscribed!

[ryanmoffat]

Great video! The Cosine rule stated at the start is missing a two.

[liuzhihao]

when would I use absolute motion vs relative motion? Thank you for your hard work, your videos are lifesavers.

[Maybe.]

Wow, You will never know how much i needed this
Thank You so much

[programmingprograms]

Good job!! Proud to have an educator like you :)

[Jimmysmith]

In the last question I split the velocity into x and y components and wrote the angle as Tan^-1(y/5+x) and I found x and y components of angular velocity but for my final answer I got w=0.065

[fra]

wonderful. Dynamics and kinematics of rigid bodies are a beautiful topic, thank's

[georgeselkhoury]

Great Job man. Absolutely Genius. You must keep up the good work always. We would appreciate if you can just upload videos fasters.
Greetings.

[inky]

For second question, how did you assume theta was the angle BDC and CBD not BCD?

[AhmedMahmoud-guun]

Can you recommend any trigonometry video or chart that shows most equations?

[jovanmagtoto]

thank you for this sir, very easy to understand. Explanation and visual aids are excellent.

[hijawi]

at 7:22 why did we use the angle of 60 degrees not 120?

[zainrezaei]

Great job man. Your videos are super.. keep it up!!

[syedanasnisar]

Thanks yar, you are doing a great job.

[عمرباناعمة-هط]

Can someone help me out here? why is Y = 0.3cos(theta) and not -0.3cos(theta) even though it is pointing downwards?

[thefadulousonefleming]

Great video, but how do you know when to implicitly differentiate, rather than just doing in normally?