Three particles each of massmare kept at vertices of an equilateral triangle of sideL.The gravitational field at centre due to these particles is :a)b)0c)d)Correct answer is option 'B'. Can you explain this answer?

Question

Answer

Gravitational field Eg.= -GM/r² (r^).As it is a vector quantity the resultant field due to two masses 'm'
will be cancelled out by the other field produced by a single particle mass 'm'.So, the effective gravitational field would be zero.

Answer

Let us put a test mass m₀at the center. Forces acting on it are

These forces are of equal magnitude and act at 120° with each other .
Hence,

∴ Fg = 0
The correct answer is: 0

Answer

Let us put a test mass m₀at the center. Forces acting on it are

These forces are of equal magnitude and act at 120° with each other .
Hence,

∴ Fg = 0
The correct answer is: 0

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