Torque, Moment of Inertia, Rotational Kinetic Energy, Pulley, Incline, Angular Acceleration, Physics

[@TheOrganicChemistryTutor]

Final Exams and Video Playlists: www.video-tutor.net/ Physics 1 Final Exam Review: kzbin.info/www/bejne/eajOmal8obN5ppI Next Video: kzbin.info/www/bejne/p3jZd3Siaqh-lcU

[@fanjiang1506]

The topic of torque starts at 51:35

[@marielaraven1761]

Thank you!

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thanks!

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bless your soul

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% of physics I learned in school: 5% % of physics I learned with Organic Chemistry Tutor: 95%

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[@Spectrojamz]

I do have a question tho...why didn't u use the weight force of the Block as the Force that causes Torque🤔...you used Tension but the tension is being caused by the weight force

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One nne he a God send teacher

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[@user-kb1ur9ky8b]

Rotational Dynamics - Introduction / Basic Overview 3:36-9:00 Arc Length of a Circle, Angle Measure in Radians & Radius 0:12-3:33 Degrees to Radians and Radians to Degrees 4. Angular Displacement Formula - Arc Length 5. Angular Velocity / Speed Equation - Rate of Change of Angular Displacement 6. Units of Angular Speed - rad/s or radians per second 7. Angular Speed vs Tangential Velocity 8. Angular Acceleration and Tangential Acceleration Formula 9. Net Acceleration Vector - Tangential Accleration and Radial / Centripetal Acceleration - Nonuniform Circular Motion 10. Frequency - Number of Cycles per Second or Revolutions Per Second 11. Period - The time it takes to make 1 revolution around a circle 12. Frequency & Angular Speed Formula 13. Rotational Kinematic Equations - Initial & Final Angular Speed, Acceleration, Displacement and Time Formulas 14. Calculating Tangential Velocity & Net Acceleration of a Disk Given Period and Frequency 15. How to Determine Linear and Angular Displacement Given Time and Speed in rpm 16. Centrifuge Problem - Rotational Motion 17. Average Angular Velocity vs Instantaneous Angular Velocity 18. Average Angular Acceleration vs Instantaneous Angular Acceleration 19. Rotational Torque, Force, Lever Arm / Moment Arm & Line of Action 20. Positive vs Negative Torque - Clockwise vs Counterclockwise Direction 21. Compound Wheel Problem With Multiple Forces - How to Calculate the Net or Sum of all Torques 22. Seesaw Physics Problem - Multiple Torques & Forces - Lever arm / distance from fulcrum or pivot point 23. Input Force vs Output Force - Simple Machines - Mechanical Advantage - Input arm vs output lever arm 24. Newton's First Law of Motion and Law of Inertia 25. Definition of Inertia - Natural Tendency of an object to resist changes in its state of motion - Resistance to Rotation 26. Inertia of a rod with axis of rotation passing through center, edge, and 1/4 from edge formula 27. Mass vs Acceleration - Newton's Second Law 28. Rotational Equivalent of Newton's Second Law 29. Torque equals Inertia x Angular Acceleration 30. Inertia of a Disk, Rod, and Sphere Formulas 31. Work, Force, and Displacement Equation 32. Rotational Work, Torque, and Angular Displacement Formula 33. Power, Force, Velocity / Speed Equation 34. Rotational Power, Torque, Angular Velocity Formula 35. Average Power vs Instantaneous Power Calculations 36. Work Equals Change in Rotational Kinetic Energy 37. Power Equals Work Divided by time 38. Power - rate of change of energy transfer - 1 watt is 1 joule transferred every second 39. Calculating the inertia of a system of particles or blocks of mass 40. Inertia Formula I=MR^2 41. Parallel Axis Theorem Formula I=Icm+MD^2 42. Inertia of 4 Point Particles of Mass M With Axis of Rotation Through Center of Mass 43. Linear vs Angular Momentum Formula 44. Linear Momentum Equals Inertia times Angular Velocity 45. Force is the rate of change of momentum per unit time 46. Torque is the rate of change of linear momentum per unit time 47. Conservation of Linear Momentum Problems - Turntable & Merry go round problems - inertia and angular speed 48. Sphere vs Block on Incline - Conservation of Energy Problems 49. Gravitational Potential Energy, Translational Kinetic Energy and Rotational Kinetic Energy Equations 50. Block of Mass Attached to Pulley / Disk - Find Acceleration Using Tension Force & Conservation of Energy 51. Frictional Torque, Block of Mass, Pulleys, Disk & Tension 52. Pulley With Mass Attached to a Hanging Mass and Another Mass on a Frictionless Horizontal Surface 53. Pulley / Disk with Radius Attached to 2 hanging mass - find acceleration 54. Incline With Pulley / Circular Disk with Hanging Mass and a Mass on Incline with Coefficient of Kinetic Friction - Determine the acceleration of the system

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[@alexisascanoa9971]

first time i watch a video for that long. i really learned a lot. now i understand what i couldn't in class. only came to watch rotation inertia and ended up watching the whole video. thanks a lot . keep it up .

[@TheOrganicChemistryTutor]

Thank you

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[@dr.doctor8810]

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I am 1 hour into the video, so far the presentation is very clear and to the point. Thanks. Thumbs up!

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[@TheOrganicChemistryTutor]

Thanks

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This 3 hour video was the compilation of 4 months of my physics class! It is amazing....thanks a lot

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Finally finished the 3.5 hours video. Very educational. A huge thank you to you JG.

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This is indeed perfect! You are a huge part of my Physics crusade! I barely learned in my Physics class. Here again to remaster this lesson. A million thanks!

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I learned more watching 15minutes of this than from my professor.

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Who else is here a night bfr the exam? Fml

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how did you do?

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night before final

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studying for an exam tmrw for my physics 101 class and am so grateful for this video. cleared so many things up, thank you!!

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I swear one of these days I won't wait till midnight to start studying for my appointment physics test.

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Agreed

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i like how he says have a great day at the i don’t think that im gonna have a great day after watching 3 and a half hours of physics

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"torque is the rotational equivalent of force"

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I can't believe nobody said that you

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😔😩 Mine too

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Try using Giancoli 6th edition

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Because the people who write these books want to sound smart and use "sophisticated" word salad diarrhea instead of practical vocabulary on the level of college students.

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Yes

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Not all heros wear capes

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what grade are you in?

[@sphystius9031]

Sometimes the simplest things mean the most, I really appreciate your help. Thank you.🧡 I do have a question though : in 2:23:33 we found the mass as 500kg. But when I used the FxΔt=mΔv logic, it hasn't worked(I got the v from Δv=Δωr=9.6 and the mass as 250kg) is it that my way of thinking is wrong or the question isn't accurate?

[@danielweinstein1411]

angular momentum to linear momentum is not conserved and cannot transfer, unlike energy.

[@sphystius9031]

Considering it has been 2 years since I graduated, it is a bit late, but thank you for responding.

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They need to start linking these videos in the syllabus

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Andre' Warner what is gpa? Sorry

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This guy has done more teaching than my professor has all semester long

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Excellent job sir, your derivations are practical and easy to interpret. -Mathematician

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I can not even put my appreciation for the videos you make in words

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After my college physics lecture on Torque I didn’t even know what torque was. Thanks!

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Modern education is a mess because there should only be teachers like this guy. Pitifully what we have is a bunch of teachers divided in two groups : Group 1: The ones who know the subject but does not have teaching abilities and are not interested to learn how to teach properly. Group 2: Teachers that do not know the subject well enough or do not know it at all, and only study the subject every term when they pretend to give a lecture about it. The comments section is a proof that in most of cases I am right.

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I can't thank you enough for the shortcut towards the end where all you have to do is sum the forces and divide by mass.

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I'm taking mechanical engineering technology at college right now (Canadian college, sort of equivalent to a community college in the US) and I have a dynamics teacher who knows the material but really isn't a good teacher and marks extremely harshly. Using this as review before a test today because I need it. Covering rolling motion and linear energy systems. Hoping it goes well lol. I probably would have failed out of college if not for your videos.

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From the bottom of my heart, thank you.

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Night before exam, first time watching 3 hours video non-stop 🤯, but the video is great as always, thank you~~~

[@flostalzhu1490]

Bm: 34:57 55:22 1:09:37 net torque is T1 = 300(2) = 600 + T2 = 400(1) = 400 1000??? Nope because T1 is cw which is negative, so -600 and T2 is positive 400 so net Torque is -200 1:21:59

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Add the speed twice more. It is still understandable. Thank you thank you thank you so much this video saves my test. Incredibly help ppl. 💓💓💓💓💓💓💓

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8 hours to my final and I finally finished watching this. gonna watch next video now

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[@nishitachowdhury8815]

at 1:14:18 when we are using 60° for calculating the torque why are we doing Fsin60° instead of Fcos60°? or F1sin30

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Either do Fcos30 or Fsin60...both are perpendicular to the radius

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Thank you so much for this video. Just wanted to point out that at 3:21:00 it’s just 1/2 M, not 1/2 Ma

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