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Motion of centre of mass

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By Expert Faculty of Sri Chaitanya
Question

Two blocks A and B are connected by a massless string. A force of 30 N is applied on block B. The distance travelled by the centre of mass in 2 sec starting from rest is

 

Moderate
Solution

ac=3010+20  m/s2=1  m/s2        xc=12  .  1.  22  m=2m.


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