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.

17 comments:

  1. Today we will define and find out how to calculate:
    1.) average velocity/speed
    2.) Instantaneous velocity/speed
    3.) acceleration
    Post five problems where someone has to calculate

    and out of those five:
    1.) solve for instantaneous velocity
    2.) solve for average velocity
    3.) solve for time
    4.) solve for distance
    5.) solve for acceleration
    each question must have units.


    A concept is the general idea of the problem and is always by its self.
    A unit is always going to be with a number.

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  3. Average velocity is the path distance divided by the time interval. The equation for velocity is V=d/t

    Instantaneous velocity is speed at any instant.

    Acceleration is the rate that an objects velocity changes with time. Acceleration= change in velocity/ time interval.

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  4. 1) Average velocity and speed:
    -Velocity is the distance traveled divided by the time while traveling in a certain direction.
    V=D/T

    Instantaneous velocity and speed:
    -Instantaneous velocity is the speed at a given moment.
    V=D/T

    Acceleration:
    -It is the rate of change of velocity as a function of time. Its a vector.
    V=(A)(T)

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  6. 1. Average velocity and speed:

    -A moving body's average velocity during an interval of time is the total distance covered divided by the total time elapsed while traveling in a given direction..

    -V=d/t

    2. Instantaneous Velocity and speed

    -Instantaneous Velocity is defined mathematically

    -The velocity of an object at an instant.

    -V=d/t

    3. Acceleration

    -Acceleration is the change in velocity over time.

    -V=(a)(t)

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  7. 1. Average Velocity - Displacement over total time. v=d/t
    2. Instantaneous Velocity - Speed at a particular moment in time. v=d/t
    3. Acceleration - Change of velocity with respect to time. v=a x t

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  8. 1.) Displacement over total time V=D/T
    2.)Is speed at a particular moment in time V=d/t
    3.)Change of velocity with respect to time v=a times t

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  9. Average Velocity- is the rate of change of position. v=d/t
    Instantaneous Velocity- is the speed of an object at a particular instant in time v(t)=ds/dt
    acceleration-

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  10. 1. Average velocity is the rate of change of position. v=d/t
    2. Instantaneous velocity is the speed of an object at a particular instant in time.v(t)=ds/dt

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  11. Average Velocity- is displacement over total time.
    V=d/t

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  12. 1) average velocity/speed is the path distance divided by time interval v=d/t.

    2) instantaneous velocity/speed is the speed at any instant.

    3) acceleration is the rate at which an object's velocity changes with time; the change in velocity may be in magnitude (speed), or direction, or both.

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  13. 1.)The average speed of an object is defined as the distance traveled divided by the time elapsed. Velocity is a vector quantity, and average velocity can be defined as the displacement divided by the time.
    v=d/t

    2 The instantaneous speed is correspondingly defined as the magnitude of the instantaneous velocity.The instantaneous velocity of a body moving along any curved path is of course along a tangent and its magnitude is equal to the speed of travel
    v=d/t

    3.Instantaneous acceleration is the acceleration at any instant of time or at any given point.
    v=(a)(t)

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  14. average velocity - displacement over total time. equation- V=d/t

    instantaneous velocity- as a limit of an average velocity as the time interval gets smaller and smaller.

    acceleration- the change in velocity over time. equation- a=v/t

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  15. 1) Average velocity/speed=path distance divided by interval V=d/t
    2) Instantaneous velocity/speed=speed at any time V=a x t
    3) Acceleration=rate at which an object velocity changes with time
    A=v x t

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  16. Average velocity/speed-path distance divided by interval V=D/t

    Instantaneous speed-Speed at any time V=a x t

    acceleration- Rate at which an objects velocity changes with time A=v x t

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  17. Average Velocity: is displacement over total time.

    Average Speed: The average rate of movement.

    These are the equations for the average speed and velocity:

    Average Speed= Distance Traveled/time of travel

    average velocity= (x) positon/time which is equal to displacement/time


    Instantaneous Velocity Speed: velocity at a particular instant of time.

    Instantaneous Velocity Speed= v(i)= lim/t-->0x/t

    Acceleration: is the rate of change of velocity as a function of time.

    Acceleration= a=v/t

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