Give two examples each for a contact force and a force at a distance ?
Answers
Answer: Contact force- Running, Riding a bicycle
Non contact forces- A apple falling from a tree, Charging paper bits by rubbing a plastic scale with our dry hair.
Explanation:
Contact force:When one or more forces act on a body, or on each other by staying in contact to the body or to each other, such forces are called contact forces.
E.g:- normal action reaction forces, force of tension, frictional force,etc.
Force at a distance(Non-contact force):When a force acts on body by maintaining a distance with the body,i.e. it does not stay in contact with the body, then such a force is called non-contact force.
E.g:- electrostatic force of attraction, magnetic force of attraction, etc.
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