Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Velocity Table

  1. Dec 19, 2003 #1
    My question I don't understand how to add a colums for total distance.

    Construct a table of values of velocity and total distance fallen at the end
    of each half-second during the first 5 seconds for a stone at rest dropped
    from a very tall building. Include columns for time, velocity, and total
    distance


    Time of Fall Velocity Aquired Distance
    (seconds) (meters/seconds (meters/seconds
    _______________________________________
    0--------------------- 0---------------------0
    0.5-------------------4.9--------------------1.225m/s
    1--------------------- 9.8-------------------4.9m/s
    1.5-------------------14.7-------------------11.025m/s
    2 ------------------- 19.6------------------19.6m/s
    2.5------------------24.5--------------------30.625m/s
    3 -------------------- 29.4------------------44.1m/s
    3.5-------------------34.3-------------------60.025m/s
    4--------------------- 39.2------------------78.4m/s
    4.5-------------------44.1-------------------99.225m/s
    5--------------------- 49--------------------122.5m/s
     
    Last edited: Dec 22, 2003
  2. jcsd
  3. Dec 19, 2003 #2

    Doc Al

    User Avatar

    Staff: Mentor

    I know you know how to find the distance an object falls as a function of time. Use the basic kinematics equation for accelerated motion.

    (You won't need to add columns.)
     
  4. Dec 19, 2003 #3
    total = d=49m
     
  5. Dec 19, 2003 #4

    Doc Al

    User Avatar

    Staff: Mentor

    Re: Re: Velocity Table

    No. What you've done is give a table with columns for time and speed, not distance. I think you need a table with three columns: time, speed, and distance.

    [tex]V=at[/tex]

    [tex]D=\frac{1}{2}at^2[/tex]
     
  6. Jan 14, 2010 #5
    I'm hoping someone can help me.

    I'm working on this same Velocity table and need to understand a couple things. Is velocity the same as the speed... it should be should it? also, I'm looking for distance and while I have these equations I'm not sure what to do? Physics online is a little more difficult then I realized. But I feel if I get thru the initial reminders of calculus, I'll be just fine.

    If someone could do an example even unrelated... it would be sooo helpful. thank you

    Using the formulas V=aT & D=1/2aT2

    ....................................................V=aT...............D=1/2aT2
    T2=Time....a or g = Speed m/s..... V=Velocity...........Distance
    0......................0...............................0......................0
    .5.....................4.9.............................2.45
    1......................9.8.............................9.8
    1.5...................14.7............................22.05
    2......................19.6............................39.2
    2.5...................24.5............................61.25
    3......................29.4............................88.2
    3.5...................34.3............................120.05
    4......................39.2............................156.8
    4.5...................44.1............................198.45
    5......................49...............................245


    Is this right so far?
    Michelle
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook