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Three equal masses of 2kg each are place...

Three equal masses of 2kg each are placed at the vertices of an equilateral triangle and a mass of 4 kg is placed at the centroid of the triangle which is at a distance of `sqrt(2)` m from each of the vertices of the triangle. The force, (in newton) acting on the mass of 4 kg is

A

2

B

1

C

3

D

zero

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The correct Answer is:
D
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