Q. 44.0( 20 Votes )
Give two examples each for a contact force and a force at a distance.
Examples of contact and non-contact forces are :-
a) CONTACT FORCE – Friction force(for this force to operate the two rough surfaces must be in contact) and Normal force(for this force to operate the contact of the object with the earth directly or indirectly must be there).
b) NON-CONTACT FORCE – Magnetic force(we have seen magnets to repel and attract themselves without any contact between them) and Gravitational force(when we jump or when we throw something up earth exerts a force on us called gravity and pulls the thing down even when we are not in contact with earth).
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