Question

Four particles A, B, C and D each of mass m are
kept at the corners of a square of side L. Now the
particle D is taken to infinity by an external agent
keeping the other particles fixed at their respective
positions. The work done by the gravitational force
acting on the particle D during its movement is
mm
AS OB
(1) 26m
mo Lom
(2) -2 CM​

Answer 1

Explanation:

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Roll no.42