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    Physics
    Grade-7
    Easy

    Question

    Which of the bodies given below has less kinetic energy when both have the same mass?
    A) 3 m/s
    B) 6 m/s

    1. A
    2. B
    3. A & B
    4. None 

    Hint:

    A

    The correct answer is: A

      Kinetic energy is directly proportional to the square of its velocity. If a body has less velocity, then its kinetic energy will also be lesser. Here, A possesses less velocity hence, its kinetic energy is also less.

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