Recent content by bbal

I came up with this I hope you can read it. As far as the one with potential is concerned, I'm still thinking about how to start that one.

Thank you for pointing out the mistake. Yes, the rod does exert force on the masses. I drew one, but I only included the components the gravitational force.

Components of gravitational force on M: normal force:M*g*cos(90-α)M*g*sin(α) Downhill force: M*g*sin(90-α)=M*g*cos(α) On m: normal force: m*g*cos(α) Downhill force: m*g*sin(α)

It's basically all you can see on the picture. I took it as a starting, that if we connect the "top" of a circle to any other point of the circle with a straight line, the time to travel along each would be the same. Then I tried to sketch a circle, such that, point P is on "top" of it and the...