Science Velocity and speed

Discussion in 'The Edge of the Forum' started by Vishnoo, Jul 17, 2016.

  1. Vishnoo
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    Vishnoo Failure is success if we learn from it.

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    Can anyone explain Velocity and Speed for me.I really don't understand it?
    Whats really the difference.Googled it,But i don't get a definite answer.
     
  2. Alkéryn

    Alkéryn Master of cookies ~

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    Albategnius, Moon
    Speed is scalar, velocity is vectorial in "easy" words speed is the quantity of distance units per time units
    while velocity is speed plus a defined direction and sense

    — Posts automatically merged - Please don't double post! —

    Example an object that is mooving at a speed of 7 kmh
    can have an horizontal velocity of 5 km/h, a vertical velocity of 5km/h and a Z velocity of 0 km/h (By Z i mean the 3rd axis of a 3d space)
    EDIT: I didn't made the calculation for units, so the units I gave migth be wrong scince i made it in my head and it is just an example xD
     
    Last edited by Alkéryn, Jul 17, 2016
  3. invaderyoyo

    invaderyoyo invader

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    I'd like to add that if you have the velocity, you can find the speed by squaring the components, adding them up, and then taking the square root.

    Are you doing partial derivatives?
     
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  4. Alkéryn

    Alkéryn Master of cookies ~

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    No, i'm not (in school) i just like math and science ^^
     
  5. invaderyoyo

    invaderyoyo invader

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    I was wondering if OP was doing them because that's where you use this stuff. After partial derivatives comes surfaces and then cylindrical and spherical coordinates and then vector fields and more crazy stuff. Oh man, I'm getting stressed out and I already passed that stuff...
     
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  6. Alkéryn

    Alkéryn Master of cookies ~

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    And also acceleration and shit :P
     
  7. invaderyoyo

    invaderyoyo invader

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    By that point you better have a solid grasp on accelaration since it's one of the first things you're taught.
     
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