NEET 2019 Physics question
Body A of mass moving with speed collides with another body B of mass , at rest. The collision is head on and elastic in nature. After the collision the fraction of energy lost by the colliding body A is :
Answer: (2)
Solution
For a head-on elastic collision with moving and at rest:
= u = u =
Initial kinetic energy of A: . Final kinetic energy of A: . Fraction of
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