What is force? ...............
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A push or pull acting on a body is known as force.
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Force is that cause which either changes or tends to change the shape, size, dimensions, state of rest, state of motion etc. of an object over which it acts. The forces are mainly divided on the basis of when it acts. The types of forces are given below : -
1. Contact Forces
The forces that are applicable only when the objects under consideration are in actual physical contact with each other are called contact forces. Examples: Frictional Force, Muscular Force, Force of Tension, etc.
2. Non-contact Forces
The forces that are applicable even if the objects under consideration are not in actual physical contact are named non-contact forces. Examples: Gravitational Force, Electrostatic Force, Magnetic Force, etc.
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