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Question

# Two masses m1 and m2 (m1<m2) are released from rest from a finite distance. They start under their mutual gravitational attraction-

A
Acceleration of m1 is more than that of m2.
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B
Acceleration of m2 is more than that of m1
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C
Centre of mass of system will remain at rest in all the reference frame
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D
Total energy of system remains constant
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Solution

## The correct options are B Acceleration of m1 is more than that of m2. D Total energy of system remains constant Mutual force of attraction is same on two bodies, but acceleration a=Fm Therefore, a∝1m As m1<m2, ⇒a2<a1 Here, Potential energy is getting converted to kinetic energy. Therefore, no energy loss.

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