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Define internal forces .class 7th from cbse its urgent please help |
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Answer» ong>Answer: Internal forces are forces exchanged by the objects in the system. Internal forces may CAUSE acceleration in different parts of the system but does not cause any acceleration in the CENTER of MASS of the entire system. Example: Friction is an external force if the BODY experiencing friction in the system. please MARK my answer as brainliest |
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