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Most Important Selected Qs for JEE AdvancedPhysicsCenter of Mass, Momentum and Collision

A shell is stationary in the free space split in to two fragments of masses 4 kg and 2 kg by it's explosion adds on an energy of 24 J to fragments. The magnitude of relative velocity (in m / s ) between the two fragments after explosion is: (Assume that energy is released in form of kinetic energy only)

Correct answer

6

Step-by-step solution

aligned & 1 2 m₁ v₁^2=E m₂ m₁+m₂ & v₁= 2 E m₁+m₂ m₂ m₁ & v₂= 2 E m₁+m₂ m₁ m₂ & v_ rel = 2 E m₁+m₂ m₁+m₂ m₁ m₂ = 2 E (m₁+m₂ ) m₁ m₂ - 2 24 6 8 aligned

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