Newton’s third law
What Newton’s third law means in Mathematics A-Level, as defined for AQA, Pearson Edexcel, WJEC.
Definitions of Newton’s third law
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Reference: Pearson Edexcel
If body A exerts a force on body B, then B exerts an equal and opposite force on A, and these act on different bodies.
If A exerts a force on B, B exerts an equal and opposite force on A; these act on different bodies.
Whenever body A exerts a force on body B, body B exerts an equal and opposite force on body A.
Topics that use Newton’s third law
- R: Forces and Newton’s laws (AQA A-Level)
- Forces and Newton’s laws (Pearson Edexcel A-Level)
- Forces and Newton’s laws (AS Unit 2: Applied Mathematics A) (WJEC A-Level)
Related terms
- force
- Newton's first law
- Newton's second law
- Resultant force
- weight
- coefficient of friction
- Equilibrium
- inextensible string
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