Question

Define force. Is it necessary for the two bodies to be in direct contact for a force to exist between them?

Answer 1

Force is push or pull on an object the si unit of force is Newton (N) no it is not necessary for two bodies to be in direct contact with force
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Answer 2

hey dear here is your answer

FORCE - force is a phenomenon that can create acceleration in any body or can stop moving body ..
yes it is necessary ..
like we are in contact with earth due to gravitational force ...

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