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Homework Help: Does a = v dv/dx hold when moving in a plane?

  1. Apr 13, 2016 #1
    Not exactly homework in my case but I guess it fits the level.

    We know that a = v dv/dx holds when moving on a line. Does it hold when moving on a plane?

    If yes, what would be the exact formulation of the statement. I mean, I read a = v dv/dx as a(x) = v(x) dv/dx(x) (or are they functions of t?) but since on a plane a(x), v(x) and dv/dx(x) are all vectors, how do we define the product?
  2. jcsd
  3. Apr 13, 2016 #2


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    In one dimension you can use the rule ## a=\frac{dv}{dt}=\frac{dv}{dx}\frac{dx}{dt}=v\frac{dv}{dx}## but in dimension greater than one you must do attention to use the analogue tools ...
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