Hell Important Points | Work, energy and Power | Class 11 Physics | MDCAT 2023 | NEET 2023 |

Hell Important Points | Work, energy and Power | Class 11 Physics | MDCAT 2023 | NEET 2023 |
The work done by a force is defined to be the product of the component of the force in the direction of the displacement and the magnitude of this displacement.
Where W is the work done, F is the force, d is the displacement, θ is the angle between force and displacement and F cosθ is the component of force in the direction of displacement.
We understand from the work equation that if there is no displacement, there is no work done, irrespective of how large the force is. To summarize, we can say that no work is done if:
the displacement is zero
the force is zero
the force and displacement are mutually perpendicular to each other.
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