Statics is the action of one body on another. A force is either a push or a pull. A force tends to move a body in the direction of its action. The action of a force is characterized by its magnitude, by the direction of its action, and by its point of application. Thus, force is a vector quantity, because its effect depends on the direction as well as on the magnitude of the action. Forces are classified as either contact or body forces. A contact force is produced by direct physical contact; an example is the force exerted on a
Might as Well Be Dead before. The son, Paul Herold, had consequently broken almost all ties with the family, changed his name and moved to New York City. Even the latter meagre information was only known because Paul has recently sent his sister a birthday card postmarked NYC. The father has already taken obvious steps such as an ad in the newspaper and consulting the Missing Persons Dept of NYPD. Although the present name of Paul Herold is unknown, Wolfe suspects that he has at least retained the same initials, and therefore places an advertisement in the newspapers the following day advising "PH" that he