Three identical bodies of mass are located at the vertices of an equilateral triangle of side . They revolve under the effect of mutual gravitational force in a circular orbit, circumscribing the triangle while preserving the equilateral triangle. Their orbital velocity is |
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a) |
b) |
c) |
d) |

Three identical bodies of mass are located at the vertices of an equilateral triangle of side . They revolve under the effect of mutual gravitational force in a circular orbit, circumscribing the triangle while preserving the equilateral triangle. Their orbital velocity is |
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a) |
b) |
c) |
d) |

1 Answer

127 votes

**(a)**

Given,

Centripetal force for circumscribing the triangle in a circular orbit is provided by mutual gravitational interaction.

127 votes

127