Classical mechanics can, in essence, be reduced to Newton’s laws, starting with the second law, in the form If the net force acting on a particle is F, knowledge of F permits the momentum p to be found; and knowledge of p permits the position r to be found, by solving the equation These solutions give the components of p—that is, p x , p y , and p z —and the components of r—x, y, and z—each as a function of time. To complete the solution, the value of each quantity—p x , p y , p z , ...(100 of 22225 words)