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# What is Hooke’s Law in Physics

## Hooke’s Law in Physics

Hooke’s Law states that the extension or compression of a spring is directly proportional to the force acting on it provided the elastic limit of the spring has not been exceeded.

Definitions:

1. Joule:

It is the work done by a force of one Newton when the body is displaced one meter.

1. Erg:

It is the work done by a force of one Dyne when the body is displaced one centimeter.

1. Foot Pound (fT-lb):

It is the work done by a force of one pound when the body is displaced one foot.

1. Force:

It is an agent that moves or tends to move or stops or tends to stop a body.

1. Watt:

Watt is the unit of power that is equal to the quantity of 1 Joule work done 1 in 1 second.

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