Recent content by Mark128

Yes, I was taking a center of the cylinder keeping in mind, that there is friction acting on it, and that's why change in angular momentum (L2-L1) is non-zero. If I choose point of contact as center, the angular momentum is in fact conserved, but I don't know, how this could help.

I've been trying to solve it mainly through conservation of momentum and angular momentum, appareantly it's not correct. My idea was: I, Moment of inertia = 0.5*m*r^2 L1, initial angular momentum = I * v/r After a board stops, the change in it's momentum is M*v, so the impulse of torque on the...

And if a tension at the lowest point is given? Then how to calculate its mass?

Hi, I have a question about a hanging rope - how do you find it's mass? I've been searching a long time, stumbled across some advanced calculus involving catenary functions and equations, but couldn't quite figure it out.