JEE Main 2003 Physics question
Two spherical bodies of mass and & radii & respectively are released in free space with initial separation between their centres equal to 12R. If they attract each other due to gravitational force only, then the distance covered by the smaller body just before collision is
Answer: (3)
Solution
They collide when the distance between centres is , so together they travel . Only internal forces act, so the centre of mass stays fixed and each displacement is inversely
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