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```         what is common centre of mass
```
7 years ago

147 Points
```										Dear manisha
every body has center of mass .But in many problem we have to consider more than one body with in one system .so to write equation of motion for this system having more than one body w need to find out the common center of mass .
for example we have 3 body placed at x=2 ,x=4,x=8 having mass 2kg ,5 kg and 10 kg respectively so common center of mass from the origin is
COM = (m1x1 + m2x2 + m3x3)/(m1+,2+m3)
= (2*2 + 5*4 + 10*8)/(2+5+10)
=104/17
Please feel free to post as many doubts on our discussion forum as you can.If you find any question Difficult to understand - post it here and we will get you the answer and detailed  solution very  quickly. We are all IITians and here to help you in your IIT JEE preparation.All the best. Regards,Askiitians ExpertsBadiuddin
```
7 years ago
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