Three point masses

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Three point masses, each of

5\,\text{kg}

, are fixed at the vertices of an equilateral triangle of side

0.5\,\text{m}

. Using

G = 6.67\times10^{-11}\,\text{N\,m}^2\text{kg}^{-2}

, calculate the magnitude and direction of the net gravitational force acting on the mass at one vertex due to the other two masses.