Physics-
General
Easy

Question

A truck moving on horizontal road towards east with velocity 20 ms–1 collides elastically with a light ball moving with velocity 25 ms–1 along west. The velocity of the ball just after collision

  1. 65 ms–1 towards east    
  2. 25 ms–1 towards west    
  3. 65 ms–1 towards west    
  4. 20 ms–1 towards east    

The correct answer is: 65 ms–1 towards east

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