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Physics · GRAVITATION
हिन्दीThree equal masses of mass \( m \) are fixed at the vertices of an equilateral triangle \( ABC \) with distances from centroid \( G \) being \( AG = BG = CG = 1\text{ m} \). If the mass at vertex \( A \) is doubled to \( 2m \), what is the magnitude of the net gravitational force on a mass of \( 2m \) kept at centroid \( G \)?
Correct answer · Option 4
\( 2Gm^2 \)
Explanation
The original three masses produce zero net force. Adding an extra mass m at A produces an unbalanced force F = G(m)(2m)/(1)^2 = 2Gm^2 towards vertex A.
