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Force is the physical quantity with which an object can be pushed or pulled.
Principle of force is defined in terms of the principle of equivalence i.e. gravitational mass = inertial mass.
Force is used to change the state of the body. 
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Force is any pish or pull applied on an object which brings or tries to bring about a change in the motion, direction of motion, or state of rest of an object. Dont get it what were you trying to say by its principles.
Hope this helps you. And I request you yo please mark my answer as the brainliest.
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