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

A block of mass 1 kg is resting on a rough horizontal surface with coefficient of friction 0.2 . If an impulse (10 i -10 j ) N - s is given to block then velocity of block just after the given impulse is

Options

  1. A10 ~m / sec .
  2. B0 ~m / sec .
  3. C8 ~m / sec .
  4. D4 ~m / sec .

Correct answer

C. 8 ~m / sec .

Step-by-step solution

aligned & P=10-(10) 0.2 & 8=1 v & v=8 ~m / sec aligned

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