What if the rope has mass? (Atwood machine)

preview_player
Показать описание
In this video I derive the time evolution of a pulley system with a massive rope, using an energy method.

About me: I studied Physics at the University of Cambridge, then stayed on to get a PhD in Astronomy. During my PhD, I also spent four years teaching Physics undergraduates at the university.

#physics #maths #mechanics #dynamics #energy #mass #pulley #string #rope
Рекомендации по теме
Комментарии
Автор

For elegance, you can transform the last equation with the cosh() function :)

Lukasz.Skowron
Автор

Why when writing potential energy it's -λxgx, isn't it -λxgx/2 + λxgx/2 = 0, since one side moves up and the other goes down?

PhysicsFANatic