MHT CET 2024 Physics question
In the system of two particles of masses 'm' and 'm', the first particle is moved by a distance 'd' towards the centre of mass. To keep the centre of mass unchanged the second particle will have to be moved by a distance
Answer: (C)
Solution
Take the centre of mass as the origin: with . If moves by towards the origin, its moment changes by . For the centre of mass to stay put, must change by , i.e. , so
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