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Question 6035
NEET Physics · Medium

Work, Energy & Power: Non-Conservative Forces MCQ

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Non-Conservative ForcesMediumQuestion 6035

Question

In which situation is mechanical energy NOT conserved?
  1. A
    Freely falling body
  2. B
    Block on frictionless surface
  3. C
    Block on rough surface
    Correct
  4. D
    Projectile (no air resistance)

Correct answer

Block on rough surface

Explanation

Friction dissipates ME — not conserved on rough surface.

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