12.3 Virtual Displacement

[@rebelartwork]

Loved this series of videos. It explains the real math behind pulley's that really allows you to visualise the forces at play and how the system works.

[@jeopardyking7187]

yes in my highschool (10th grade)they miss the depth of math about what is actually happening.

[@박재성-k7h]

I can understand why MIT is best.

[@Genie890]

Where does virtual displacment come in all this?

[@AnasHawasli]

He derrived the equations of movement using a virtual movement. So he assumed the object has moved and concluded the equation ruling this movement.

[@dddddd15926]

추가정보를 얻는 방법중이 하나 더 있는데, 가상 변위(?)를 설정하는 것, 즉 시스템이 움직이는 상황을 가정하는것. 그로부터 정보 추가습득 가능.

[@the_eternal_student]

Why is pulley B not attached to the ceiling? Do pulleys really work that way? It looks like it would fall off.

[@Jmmm19]

Yes, many real world pulleys are designed this way to reduce effort required to lift a heavier load. Often called "movable pulleys".

[@tashfinakhtar9949]

What is the unit of virtual displacement? Can someone answer?

[@fireblizzard2287]

Same as displacement.

[@padamkishor1363]

Sir which type of your board

[@piupolino2618]

lightboard

[@saketkumar5167]

Neat mathematical explainations
Love it 😀😀🙂🙂

[@abhishekravindra4008]

theres also a virtual work concept

[@jeopardyking7187]

ya

[@AnasHawasli]

thank you!

[@sahilkhan_cs50]

I have one doubt.If change in y1=-2*change in y2 in a given time interval ,then how can we conclude that the velocities and acceleration of 1 is twice that of 2.I can sense that however if you can derive it mathematically it would be great.

[@harshitjoshi4561]

Educational and Technical Guruji He mentions it that you have to take a derivative of the displacement to get velocity and differentiate again to get acceleration

[@Sparkle86Blender]

Find the second derivative you will get it

[@Sparkle86Blender]

Of displacement

[@sahilkhan_cs50]

Thank you

[@cafe-tomate]

Δy is just y(t)-y_0 so if you differentiate this, y_0 disappears

[@MrNotSelc]

Still can't wrap my mind around it :/

[@davel7037]

😭

[@trickytricks5119]

This is fun