Monday, September 14, 2009

Monday 9-14-09 Speed/Velocity definitions and Problems

2. Solve for Distance
Find the distance a car traveled if it drove for 10 s and was traveling at a speed of 20 m/s
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18 comments:

  1. Eric RSeptember 14, 2009 at 12:36 PM

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  2. Eric RSeptember 14, 2009 at 12:36 PM

    Average Velocity is displacement over total time. v = d/t

    Instantaneous Velocity is the velocity of an object at an instant. v = d/t

    Acceleration is the change in velocity over time. v = a * t

    - Eric R

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  3. Dylan Z.September 14, 2009 at 12:37 PM

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  4. Dylan Z.September 14, 2009 at 12:39 PM

    1. Average velocity/speed is the rate of change in position of an object over an interval. To calculate average velocity/speed, you use the formula v = d/t where v is velocity, d is distance, and t is time. Equation #1

    2. Instantaneous velocity/speed is the velocity/speed at one point in time. To calculate instantaneous velocity/speed v = a X t where v is velocity, a is acceleration, and t is time. Equation #2

    3. Acceleration is the rate of change in velocity at a point in time. To calculate acceleration you use the equation V = a X t and manipulate it to a = t / V. Equation #2

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  5. UnknownSeptember 14, 2009 at 12:39 PM

    Speed is the rate of change of distance with time.
    As a scalar it has magnitude only.

    Average speed …
    is measured over a non-zero time interval and
    is represented by the symbol vave or v (overline)
    Instantaneous speed …


    Average velocity …
    is measured over a non-zero time interval and
    is represented by the symbol vave or v (overline)

    Instantaneous velocity …
    is the limit of average velocity as the time interval approaches zero,
    is the first derivative of displacement with respect to time, and
    is represented by the symbol v (boldface)

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  6. erycpeckSeptember 14, 2009 at 12:40 PM

    Average velocity is path or distance diveded by time interval the equation is the first equation or equation # 1
    Instantanious velocity is the speed you were going at the certain time and the equation is #2
    acccelleration is the change of speed increasing the equation is #2

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  7. stephanySeptember 14, 2009 at 12:40 PM

    1. Average velocity: Path distance divided by the time interval
    v=d/t

    2. Instantaneous velocity: limit of and average velocity, as the time interval gets smaller
    v=d/t

    3. Acceleration: the change of speed
    v=a(t)

    ReplyDelete
  8. Justin PhillipsSeptember 14, 2009 at 12:40 PM

    Average Velocity: Is the rate of change of position.
    Instantaneous Velocity: The speed you are going at that time.
    Acceleration: Is the change of speed or when speed changes.

    ReplyDelete
  9. Marina L.September 14, 2009 at 12:40 PM

    1. What is the Average velocity is the rate of change of distance over time.
    V=D/T
    2. instantaneous is the speed you are going at that time.
    V=AxT
    3. acceleration is the change of speed

    ReplyDelete
  10. Angel GarciaSeptember 14, 2009 at 12:40 PM

    1) Average velocity/speed: the rate of change of distance over time. the equation for finding average speed is v=d/t

    2) Instantaneous velocity/speed: the speed you are going at a specific time

    3) Acceleration: the change of speed. the equation of acceleration is v=(a)(t)

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  11. AnonymousSeptember 14, 2009 at 12:40 PM

    Average velocity- Path distance divided by time interval.
    Average speed= total distance covered divided by time interval.
    (v=d/t)

    Instanteneous velocity- limit of an average velocity as the time interval gets smaller.
    (v= d/t)

    -Mitzy H
    Acceleretaion- the change of speed or when speed chages.
    (v=a*t)

    ReplyDelete
  12. UnknownSeptember 14, 2009 at 12:41 PM

    Average Velocity: the rate of change of distance in a given time v=d/t

    Instantaneous Velocity: the speed you were going at the time v= A x T

    Acceleration: is the change in speed v=A x T

    ReplyDelete
  13. UnknownSeptember 14, 2009 at 12:41 PM

    1) average velocity/speed- Path distance divided by time interval 1) v=d/t
    2) instantaneous velocity/speed- speed at any instant 2) v= at
    3) acceleration- when speed changes. 2) v =at

    ReplyDelete
  14. UnknownSeptember 14, 2009 at 12:41 PM

    1) Average Velocity/Speed- the rate of change of distance over time.
    V=D/T
    2) Instantaneous Velocity/Speed- speed you are going at a specific time.
    V=AxT
    3) Acceleration- when speed changes.
    V=AxT

    ReplyDelete
  15. AnonymousSeptember 14, 2009 at 12:41 PM

    karina virrueta
    1.Average speed is a measure of the distance traveled in a given period of time taken.
    2. The speed of an object at a particular instant in time.
    3. When speed changes

    ReplyDelete
  16. MirellaSeptember 14, 2009 at 12:41 PM

    1) Average Velocity/Speed-Path distance divided by time interval. v=d/t
    2) Instantaneous Velocity /Speed-Speed at any instant. v=at
    3) Acceleration- The change of speed. v=at

    ReplyDelete
  17. UnknownSeptember 14, 2009 at 8:29 PM

    1.Average Velocity is a displacement over total time.
    2. Instantaneous velocity: limit of and average velocity, as the time interval gets smaller
    v=d/t
    3.Acceleretaion- the change of speed or when speed chages.
    (v=a*t)

    ReplyDelete
  18. AnonymousSeptember 14, 2009 at 9:17 PM

    Janet Rangel

    1. Average velocity/speed is a measure of the distance traveled in a given period of time.
    v=d/t

    2.Instantaneous velocity/speed is the speed of an object at a particular instant in time.
    v=d/t

    3. Acceleration is the change of the speed oe when the speed changes.
    v=(a)(t)

    ReplyDelete

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