posted by Phy help! on .
An equilateral triangle 10.0m 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.
Find the magnitude of the net force acting on the 1.00-kg mass.
Find the direction of the net force acting on the 1.00-kg mass.
Use Newton's universal law of gravity and add the two forces as vectors. They will be 60 degrees apart, and one will be 1.5 times the other.