Recent content by Hermes Chirino

They use m, so when solving for the differential equation, the math comes a little bit easier, they mention in the book that we shouln't really too much on the mass, they use it only for mathematical purposes. I understand your point in the y direction, that gravity comes as an extra force, but...

I'm reading this book on Classical Mechanics and there are two examples in the book where we are asked to find one expression for the velocity $v$, and one for the position $x$, both as functions of time for a particle moving in the x-direction in a "medium" where the drag force is proportional...

The bulk modulus B = - V (∂P/∂V). At constant temperature the pressure is given by P= -∂U/∂V, where U is the total energy. We can write B in terms of the energy per particle u = U/N and volume per particle v = V/N : B = v...