Figure P7.45 shows several arrangements of blocks. In cases 1 through 3, the blocks all...

Figure P7.45 shows several arrangements of blocks. In cases 1 through 3, the blocks all have the same mass, but in case 4, one of the blocks has a mass twice that of the other two blocks. Find the approximate center of mass for each arrangement. Assume the grid lines are spaced 1 m apart in both the x and y directions.