TY - JOUR T1 - A Simple Expression for the Center of Mass of a System of Particles in a Two-Dimensional Space with Constant Positive Curvature AU - P. Ortega Palencia, Pedro AU - Dario Ortiz, Ruben AU - Reyes Victoria, J. Guadalupe JO - Journal of Engineering and Applied Sciences VL - 14 IS - 24 SP - 9603 EP - 9607 PY - 2019 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2019.9603.9607 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2019.9603.9607 KW - Center of masses KW -conformal metric KW -spherical rule of the lever KW -geodesic KW -Euclidean case KW -one-dimensional sphere AB - In this research is given a simple expression for the center of mass of a system of material points in a two-dimensional surface of Gaussian constant positive curvature. Using basic techniques of geometry, an expression in intrinsic coordinates is obtained and it is showed how this extend the definition for the Euclidean case. The argument is constructive and also serves for defining center of mass of a system of particles on the one-dimensional Sphere S1R. ER -