Question

कार्य ऊर्जा प्रमेय क्या है ?

Answer 1

जब किसी वस्तु पर पर बल लगाया जाता है तो उस वस्तु में कुछ विस्थापन उत्पन्न हो जाता है , वस्तु पर लगाये गए बल तथा उत्पन्न विस्थापन के अदिश गुणनफल को वस्तु पर कृत कार्य कहते है

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Answer 2

It is defined as the work done by the summation of all the force acting on an object is equal to the changes in its kinetic energy.

Explanation:

The work-energy theorem is usually defined as the total work done by the forces on an object is equivalent to the changes that occur in terms of its kinetic energy (K.E).

This is also known as the principle of work and kinetic energy.

Mathematically, it can be written as-

⇒ Work done = final K.E ₋ initial K.E

⇒ W = (final  $\frac{1}{2}$mv²) ₋ (initial $\frac{1}{2}$mv²)

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