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Define work - energy theorem....

Define work - energy theorem.

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Work is said to be done by the force when the force applied on a body displaces it.
Energy: Energy is defined as the ability to do work.
Power: The rate of work done is called power.
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Knowledge Check

  • Assertion : When Air is blow on a plastic cover, lying on the floor. If flies to a particular height in different directions. Also It's energy at different positions keep changing. Reason : Work done by the force on the body changes the kinetic energy of the body. This is called Work - Energy Theorem. i.e., W = Delta K.E.

    A
    Assertion and Reason are correct and Reason is the correct explanation of Assertion
    B
    Assertion and Reason are true but Reason is the false explanation of the Assertion
    C
    Assertion is true - but Reason is false
    D
    Assertion is false but Reason is true

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