GK Question

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The kinetic energy of a body is directly proportional to the square of its ________.

  1. Mass
  2. Velocity
  3. Momentum
  4. Acceleration

Answer: Velocity

KE = ½mv²: kinetic energy ∝ mass and ∝ (velocity)². Doubling speed quadruples KE. Critical for mechanics and safety calculations. [[NCERT Physics Class 11]]

Topic Physics - Work and Energy
Exam Relevance Railway JE, SSC JE, Banking IBPS