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Two masses $m_{1}$ and $m_{2} (m_{1} < m_{2})$ are released from rest from a finite distance. They start under their mutual gravitational attraction

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centre of mass of system will remain at rest in all the reference frame

total energy of system remains constant

acceleration of $m_{1}$ is more than that of $m_{2}$

acceleration of $m_{2}$ is more than that of $m_{1}$

answer is A, D.

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Detailed Solution

Same force acts on both masses.

Hence $a \infty \frac{1}{m} (F = m a)$

In absence of external force (remember mutual gravitational force is an internal force for the system) total energy remains constant.

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