Physics - Center of Mass Question with Solution | TestHub

PhysicsCenter of MassCollisionEasy2 minPYQ_2009

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A particle of mass $10 kg$ moving eastwards with a speed $5 ms^{- 1}$ collides with another particle of the same mass moving north-wards with the same speed $5 ms^{- 1}$ . The two particles coalesce on collision. The new particle of mass $20 kg$ will move in the north-east direction with velocity

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Solution:

Here $\hat{i} m v + \hat{j} m v = 2 m V$ That is $V = \frac{v}{2} (\hat{i} + \hat{j})$ Hence $V = \frac{v}{2} \times 2 = \frac{v}{2} \cdot [$ Here $v = 5 ms^{- 1}]$ $So, V = \frac{5}{2} ms^{- 1}$

Stream:BITSATSubject:PhysicsTopic:Center of MassSubtopic:Collision

⏱ 2mℹ️ Source: PYQ_2009

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