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    • Question

      A body of mass 2 kg is moving with velocity 3 m/s. What

      is its kinetic energy?  
      A 6 J Correct Answer Incorrect Answer
      B 9 J Correct Answer Incorrect Answer
      C 12 J Correct Answer Incorrect Answer
      D 18 J Correct Answer Incorrect Answer

      Solution

      KE = 1/2mv2  = 1/2×2×32=9J    Kinetic energy depends on both mass and square of velocity.   It is a scalar quantity.   Unit is Joule (J).

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