STATE THE DIFFERENCE between contact and non contact force
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A non-contact force is a force applied to an object by another body that is not in direct contact with it. The most familiar example of a non-contact force is weight. ... All four known fundamental interactions are non-contact forces: Gravity, the force of attraction that exists among all bodies that have mass.Contact force is a force between two objects (or an object and a surface) that is in contact with each other. Examples: Biological force, muscular force, mechanical force and frictional force etc.
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