Q. Work is said to be done when

कहा जाता है कि काम कब होगा

A
Force is applied
बल प्रयोग किया जाता है
B
Object moves
वस्तु चलती है
C
Force causes displacement
बल विस्थापन का कारण बनता है
D
Object is at rest
वस्तु विश्राम अवस्था में है

Explanation

Work is done when a force applied on an object causes displacement of that object in the direction of the force. Simply applying force without movement does not constitute work. Also, if the object moves but not in the direction of the force, the work done can be zero or calculated based on the component of force in the direction of displacement.

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