Home Physics Gravitation Newton’s Law of Gravitation Particles of masses 2M, m and M are respecti…
Physics Gravitation Newton’s Law of Gravitation MCQ (Single Correct)

Particles of masses 2M, m and M are respectively at points A, B and C with AB = 1/2 (BC). m is much-much smaller than M and at time t = 0, they are all at rest. At subsequent times before any collision takes place

A
M will remain at rest.
B
M will move towards M.
C
M will move towards 2M.
D
M will have oscillatory motion.

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Verified by Experts
The correct answer is:
C

Force on mass m at B due to mass 2M at A is

Force on mass m at B due to mass M at C is

resultant force on mass m at B due to masses at A and C is

are acting in opposite directions

Therefore, m will move towards 2 M.

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