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in Physics by (75.1k points)
Two objects of masses `m` and `4m` are at rest at an infinite separation. They move towards each other under mutual gravitational attraction. If `G` is the universal gravitaitonal constant, then at separation `r`
A. The tatal energy of the two object is zero
B. Their relative velocity of approach is `((10Gm)/(r))^(1//2)` amplitude
C. The total kinetic energy of the object is `(4Gm^(2))/(r)`
D. Net angular momentum of both the particles is zero about any point

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1 Answer

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by (67.6k points)
Correct Answer - A::B::C::D

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