Hello! I've been doing some excercises in mechanics and stopped for a moment over the thing that sometimes bothers me. I have a set of particles of masses M and m, M>m. If I have force acting on m particle as a function of angle: F=(Mmg(1+cos[itex]\alpha[/itex]))/(M+m) (m is moving in on the surface of a verticle circle of radius R, powered by the falling M particle, both particles are connected by a string) is there a way to determine the velocity of particle in a point described by coordinates ([itex]\alpha[/itex];R)? If force was in funtction of time, that would be obvious, but what about the function of the coordinate?