state the difference between contact force and non contact force??
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contact force requires contact ex muscular force whereas no contact force doesn't require any contact ex gravitational force
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CONTACT FORCE
(I) Contact force occurs due to the contact between two different objects.
(2) There is no field linked with the contact force.
(3) The frictional force is an example of a contact force. NON- CONTACT FORCE
(1) Non-contact force occurs due to either attraction or repulsion between two objects such that there is no contact between these objects.
(2) There is always a field linked with non-contact force.
(3) Gravitational force is an example of a non-contact force.
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