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AIPMT 2009 Physics and Chemistry Paper

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Question : 7 of 100
 
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Two bodies of mass 1‌kg and 3‌kg have position vectors hat‌i+2‌hat‌j+hat‌k and −3‌hat‌i−2‌hat‌j+hat‌k, respectively. The centre of mass of this system has a position vector :
Validate
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