An equilateral triangle 10.0 m on a side has a 1.00-kg mass at one corner, a 2.00-kg mass...

An equilateral triangle 10.0 m on a side has a 1.00-kg mass at one corner, a 2.00-kg mass at another corner, and a 3.00-kg mass at the third corner (Figure 12-25). Find the magnitude and direction of the net force acting on the 1.00-kg mass.

FIGURE 12-15