Gravitation Question 358

Question: Three equal masses (each m) are placed at the comers of an equilateral triangle of side ‘a? Then the escape velocity of an object from the circumcentre P of triangle is:

Options:

A) [23Gma]

B) [3Gma]

C) [63Gma]

D) [33Gma]

Show Answer

Answer:

Correct Answer: C

Solution:

  • [Gmmr×3+12mve2=0] or [3Gm(a2/cos30o)+12ve2=0ve=63Gma]


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