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Three particles each of mass m are palce...

Three particles each of mass `m` are palced at the corners of an equilateral triangle of side `b`. The gravitational potential energy of the system of particle is

A

`(3GM)/(a^(2))`

B

`(3GM^(2))/a`

C

`-(3GM^(2))/(a^(2))`

D

`(3GM^(2))/a`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • Three charges each 20muC are placed at the corners of an equilateral triangle of side 0.4m The potential energy of the system is

    A
    `18xx10^(-6)J`
    B
    `9J`
    C
    `9xx10^(-6)J`
    D
    `27J`

  • Three particles each of mass m are kept at the vertices of an equilateral triangle of side L . What is the gravitational potential at the centroid of the triangle?

    A
    `-(3GM)/(L)`
    B
    `-(sqrt(3)GM)/(L)`
    C
    `-(3sqrt(3)GM)/(L)`
    D
    `-(GM)/(3sqrt(3)L)`

  • Three particles each of mass m are kept at vertices of an equilateral triangle of side L. The gravitational field at centre due to these particle is

    A
    zero
    B
    `(3GM)/(L^(2))`
    C
    `(9 GM)/(L^(2))`
    D
    `(12 GM)/(sqrt(3)L^(2))`