Because g varies so little over the extent of most structures, any structure's center of gravity effectively coincides with its center of mass. Here is a fictitious example where g varies more significantly. The figure shows an array of six particles, each with mass m, fixed to the edge of a rigid structure of negligible mass. The distance between adjacent particles along the edge is 1.90 m. Following are the values of g at each particle's location: Particle 1:g = 7.99 m/s2 Particle 2:8 = 7.80 m/s2 Particle 3:8 = 7.56 m/s2 Particle 4:8 = 7.46 m/s2 Particle 5:8= 7.56 m/s2 Particle 6:8 = 7.80 m/s2 Using the coordinate system shown, find (a) the x coordinate Xcom and (b) the y coordinate ycom of the center of mass of the six-particle system. Then find (c) the x coordinate Xcog and (d) the y coordinate ycog of the center of gravity of the six-particle system. 20 5 (a) Number Units (b) Number i Units (c) Number Units (d) Number i Units