Velocity and acceleration

Discussion in 'Cars in General' started by oliviamails, Feb 19, 2020.

  1. oliviamails

    oliviamails

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    What is the difference between velocity and acceleration? How it explain children?
     
  2. Vegard

    Vegard

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    Very simplified:

    Velocity is a measure of how fast you are moving.
    Acceleration is a measure of how quickly that movement is changing.
     
  3. oliviamails

    oliviamails

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    Last edited: Feb 21, 2020
  4. Vegard

    Vegard

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    Yes, those are the formal definitions.

    In the frame of reference of a car driving in a straight line acceleration is usually a term used to describe the rate of increase in speed while the rate of decrease in speed is called deceleration or retardation.
    It's also more common to use speed - a scalar, rather than velocity - a vector, to describe the rate of displacement of position.
     
  5. Famine

    Famine Administrator

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    Speed: How fast you are going.
    Velocity: Speed and direction



    Acceleration: How quickly your speed changes
     
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  6. kikie

    kikie Premium

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    I accelerate to a certain speed to get the correct velocity. :D


    Probably completely wrong but it sounds funny.
     
  7. TexRex

    TexRex Premium

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    TMBG!!!

    :tup:
     
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  8. kikie

    kikie Premium

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    That Must Be Giants? :confused:
     
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  9. daan

    daan Moderator

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    They might.
     
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  10. kikie

    kikie Premium

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    Double :confused:.



    :mad:



    :p
     
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  11. TenEightyOne

    TenEightyOne

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    Acceleration is an increase in velocity in a straight line. If the line isn't straight then it's an increase in speed :)

    A car going around a racetrack that leaves Point A and arrives again at Point A after a lap has zero velocity because it has travelled zero distance in the laptime, so the vector begins and ends in the same place. The distance it covered in that laptime gives a positive speed, because speed is computed from the distance covered between timing points.

    How quickly an object attains a speed (or decreases its speed) is the acceleration, speed-change-per-second.