Three identical point masses are fixed at the vertices of an equilateral triangle
PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
Three identical point masses are fixed at the vertices of an equilateral triangle. What is the direction of the net gravitational force acting on any one of the masses?
(a) Toward one of the other two masses
(b) Parallel to the opposite side of the triangle
(c) Toward the centroid (center) of the triangle
(d) The net gravitational force is zero