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Question 6205
NEET Physics · Hard

Gravitation: Newton's Law of Gravitation MCQ

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Newton's Law of GravitationHardQuestion 6205

Question

Three masses m are placed at vertices of equilateral triangle (side a). Gravitational force on one mass:
  1. A
    Gm²/a²
  2. B
    √3 Gm²/a²
    Correct
  3. C
    2Gm²/a²
  4. D
    3Gm²/a²

Correct answer

√3 Gm²/a²

Explanation

Two forces each Gm²/a² at 60° to each other. Resultant = √(F²+F²+2F²cos60°) = F√3 = √3 Gm²/a².

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