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Newton's third law is not correct

  1. Jun 19, 2015 #1
    Newton's Third Law concerns the forces of interaction between two bodies.
    Which of the following statements relating to the third law is not correct ?

    A. The two forces must be of same type
    B. The two forces must act on different bodies.
    C. The two forces are always opposite in direction
    D. The two forces are at all times equal in magnitude.
    E. The two forces are equal and opposite so the bodies are in equilibrium

    Ans is D but why can't be A or B ?
     
  2. jcsd
  3. Jun 19, 2015 #2
    MUST THE FORCES are of same type?
     
  4. Jun 19, 2015 #3

    jbriggs444

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    Science Advisor

    Who said that the proper response is D?

    Can you explain to us the third law in your own words?
     
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