Three particles of identical masses m are kept at the vertices of an equilateral triangle of each side length a. The gravitational force of attraction on any one of the particles is:
A
√2Gm2a2
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B
√3Gm2a2
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C
3Gm2a2
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D
2Gm2a2
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Solution
The correct option is C√3Gm2a2 Fnet=√(F21+F22+2F1F2cosθ)
Here, F1=F2=Gmmr2 and θ=600 Therefore, on solving we get, Fnet=√3Gm2a2