Abstract

BARBIERI, P.F.. Re-evaluation and recall of concepts of the general mechanics with geometric and/or graphics analysis: simple machines - Part II. Rev. Bras. Ensino Fís. [online]. 2011, vol.33, n.4, pp. 4305-4305. ISSN 1806-1117.  http://dx.doi.org/10.1590/S1806-11172011000400005.

This paper analyses the relationships between acting forces in simple machines through geometric/graphics features. Some considerations about simple machines are revised in order to reinforce physical concepts. These considerations are not considered in the basic literature of general physics. Thus, to complete this paper, it was determined displacement relations for various machines through to the mechanical work conservation.

Keywords : simple machines; line of action of a force; vectorial graphic methods.