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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

Two bodies of mass 1 kg and 3 kg have position vectors and , respectively. The centre of mass of this system has a position vector

Answer: (B)

Solution

$Missing argument for \vec\vec =Missing argument for \dfrac\dfrac{1(Missing argument for \hat\hat+2Missing argument for \hat\hat+Missing argument for \hat\hat k)+3(-3Missing argument for \hat\hat-2Missing argument for \hat\hat+Missing argument for \hat\hat

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Question ID VK-158883