wrobel's latest activity

I saw this problem several years ago in a Russian journal devoted to physics olympiads. This problem was discussed there under some...

Beyond different speculations and pop-physics, classical mechanics is a complicated nonlinear science full of counterintuitive effects...

Let's be honest: you do not have regular education in math\phys. And all of that pretentious words can not hide that. I am sure...

I must confess I reported the thread as AI generated. But moderators said that I was wrong. Nevertheless I am sure it is:) Phrases...

##\mathbb{R}^\mathbb{R}## is the space of all functions from ##\mathbb{R}## to ##\mathbb{R}##. What do you mean by writing...

I still do not understand what's wrong with the standard $$\int f(x)dx:=\{F\in C^1(a,b)\mid F'(x)=f(x),\quad x\in(a,b)\},$$ $$\quad f\in...

I remembered a pretty high school problem from kinematics. But it seems it can help even undergraduates to develop their understanding...

yes I agree. Then the only possibility I see is to write equations of equilibrium for each rod.

I have got the same and my guess is that the internal force must be Ox

A reaction in the hinge O has two components. A reaction in the hinge A has only a vertical component. We have three unknowns. Find them...

Try to write down the equations of equilibrium for each L-like rigid body. You have three scalar static equations for a rigid body in a...

Céline Dion - O Holy Night

Definition of what? If you want to say that pseudovectors arise only as the cross product in 3D then that is a mistake: there is a broad...

OK, solve the following problem without pseudovectors and show me a gain from the bi-vector's language usage. A coin of radius ##r##...