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Tamil Nadu Board of Secondary EducationHSC Science Class 11

People often say “For every action, there is an equivalent opposite reaction”. Here they meant ‘action of a human’. Is it correct to apply Newton’s third law to human actions? What is mean by ‘action - Physics

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Question

People often say “For every action, there is an equivalent opposite reaction”. Here they meant ‘action of a human’. Is it correct to apply Newton’s third law to human actions? What is mean by ‘action’ in Newton's third law? Give your arguments based on Newton’s laws.

Short Note

Solution

Newton’s third law is applicable to only human’s physical actions which involve physical force. The third law is not applicable to a human’s psychological actions or thoughts.

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Chapter 3: Laws of motion - Evaluation [Page 164]

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Samacheer Kalvi Physics - Volume 1 and 2 [English] Class 11 TN Board
Chapter 3 Laws of motion
Evaluation | Q IV. 13. | Page 164

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