PART I STATICS CHAPTER I with the conditions of e PLES OF STATICS It is a ve who used them Since a proper knowledge of mechanies can be acquired only PREFACE with the buil the by exercise in the solution of problems,special attention ban ong been given to the seloetion of problems,many of which are accompanied by complete solutions.The purpose of these blved problemns is twofold.First,they are oftensa v redium of presentation of material not include 60 proper.Second,they are designed to set an student in logical methods of approach to thesolut ing problems.The solved problems warrant as with from the student as the unsolved oncs. ies,such The solution of s probiom in mechanics usuall hree steps:(1)the reduction of a complex phyaicsl orm slightly ch s atate of ideslisstion that it can be exprese ach deform atically or geomericaly;(2)the eolution of this purel be complet tieal or geomutricsl problem;and (3)the interpretat uilibrium. re dealing wi reelte of the golutiou in terms of the iven physieal prob he particles too often the cnso thnt the student's ntention is called only ormations in pl 0ad8. second step so that he does not ace elesrly the connection on this and the tu physical problon.By succeesive prally treated in men of-thee thieeteps in the solution of esch illustra- mple,it is boned ry of. equilibrium of no the solution o isually treated in bo the ilustrati dent to a realization of pment of atatica,see Publishing Company, ata aro given quids at the end. eneourege him to one of which is imilar way. al data rgar by Ernst Mach. Is of checking ans ut in algebraio the solutio如ofa ulas.When consideration of certa only in the ses several opportunity of making eithor nt gets in numerical date aro substtuted at n. valuable Another advantage of the algebra ensional tly enriches the possibilitius of the third logical he problem,namely,significance of resu hecks solution is preferable if proper attention in- erieal calculations.For,only by having form,can it be seen with yrhat number of e calculation must be made in order to of aceuracy in the fnal rosult.
