Physics · Work and Energy

Which of the following conditions must be satisfied for mechanical work to be done on an object according to physics?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1The object moves uniformly even if no net external force acts on it.
2A net external force must act on the object, and the object must undergo displacement in the direction of the force component.✓
3A force is applied to the object, even if the object remains stationary.
4The object remains at rest while a static balancing force is applied.

Correct answer

A net external force must act on the object, and the object must undergo displacement in the direction of the force component.

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