A block of mass 2kg is travelling due east with velocity of 4m/s. what is the magnitude of momentum of B as seen from centre of mass frame of reference (in kg m/s).

A block of mass 2kg is travelling due east with velocity of 4m/s. what

1.	A block of mass 2kg is travelling due east with velocity of 4m/s. what is the magnitude of momentum of B as seen from centre of mass frame of reference (in kg m/s).
Answer» `(2G)/(5)` `(15)/(7)` `(60)/(7)` None of these Solution :`V_("cm")=(3xx1-4xx4)/(1+4)=(-13)/(5)` Momentum of B w.r.t. cm`=4[4-(13)/(5)]=(28)/(5)`

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A block of mass 2kg is travelling due east with velocity of 4m/s. what is the magnitude of momentum of B as seen from centre of mass frame of reference (in kg m/s).

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