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

Two identical rods each of mass m and length are placed on a smooth horizontal surface. In case (1) a particle of mass m moving with V₀ strikes the rod perpendicularly at its centre. In case (ii), another particle of mass m moving with V ₀ strikes the rod perpendicularly at / 4 from the centre. In both the cases, particles come to rest just after collision. The ratio of velocity of center of mass of rod in case (i) t

Options

  1. A1: 1
  2. B1: 2
  3. C2: 1
  4. D4: 1

Correct answer

A. 1: 1

Step-by-step solution

In both cases applying com, mv ₀= Mv aligned & V = m v ₀ M & V ₁ ~V ₂ =1: 1 aligned

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