Physics-
General
Easy
Question
In the given figure, two bodies of mass 
and 
are connected by massless spring of force constant 
and are placed on a smooth surface (shown in figure), then
- The acceleration of centre of mass must be zero at every instant
- The acceleration of centre of mass may be zero at every instant
- The system always remains in rest
- None of the above
The correct answer is: The acceleration of centre of mass must be zero at every instant
The resultant force on the system is zero. So, the centre of mass of system has no acceleration
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