The figure shows four arrangement of three particles of equal masses. Rank the arrangement according to the magnitude of the net gravitational force on the particle m, greatest first.

Options

A. `1`, tie of `2` and `4`, then `3`
B. `1,4,3,2`
C. `2,3,4,1`
D. `4,3,1,2`

Answer

A

Explanation

In arrangement 1, both forces act in the same direction. In arrangement 3, both forces act in opposite direction. This alone decides in favour of option (a),