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Magnitude of Accleration

  1. Sep 16, 2008 #1
    A location of a particle is given in m by x, y and z coordinates as function of time in s as:
    x= -11+9t+11t^2
    y= -23-21t
    z= -93+25t+11t^2

    What is the magnitude of the objects acceleration at t= 3.00s?

    Would I add the second derivatives for magnitude?
     
  2. jcsd
  3. Sep 17, 2008 #2

    tiny-tim

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    Hi schrock! :smile:
    You mean |a| = x'' + y'' + z'' ?

    Nooo …

    Acceleration is a vector (just like velocity :wink:).

    So its magnitude is calculated from its components the same way as for any vector. :smile:
     
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