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Q.

The velocity of the centre of mass of the system of two particles each of mass 2 kg as shown in the figure, is

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a

2.5 m/s    

b

15 m/s

c

5 m/s     

d

10 m/s    

answer is B.

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Detailed Solution

VCm=m1V1m2V2m1+m2

=50104=10m/s

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