Define force. Is it necessary for the two bodies to be in direct contact for a
force to exist between them? Explain with examples.
Answers
Answer:
A force is a push or pull upon an object resulting from objects interaction with a another force yes it is necessary two bodies to be in direct force
Answer:
Explanation:
A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force. Forces only exist as a result of an interaction.
It is not necessary for two bodies to be in direct contact for a force to exist between them.
Action-at-a-distance forces are those types of forces that result even when the two interacting objects are not in physical contact with each other, yet are able to exert a push or pull despite their physical separation.
EXAMPLES:-
GRAVITATIONAL FORCES
Examples of action-at-a-distance forces include gravitational forces. For example, the sun and planets exert a gravitational pull on each other despite their large spatial separation. Even when your feet leave the earth and you are no longer in physical contact with the earth, there is a gravitational pull between you and the Earth.
ELECTRIC FORCES
Electric forces are action-at-a-distance forces. For example, the protons in the nucleus of an atom and the electrons outside the nucleus experience an electrical pull towards each other despite their small spatial separation.
MAGNETIC FORCES
And magnetic forces are action-at-a-distance forces. For example, two magnets can exert a magnetic pull on each other even when separated by a distance of a few centimeters.