1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
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: Projectile motion(2)

  1. Oct 2, 2009 #1
    1. The problem statement, all variables and given/known data

    (I attached diagram)

    The motion diagram shown on the attachment represents the position of a projectile in flight at 1 seconds intervals in tie. The projectile starts at the origin of the coordinate system.

    a) Label the points 0 to 6

    b) Draw the average velocity vectors for each interval on the diagram, labeling them

    - - -
    V₁,V₁₂,...,V56 (- mean vector)
    - - -
    c) Take the acceleration vector at point 1 to be a₁= V₁₂-V₁/△t
    and draw this vector on the diagram with its tail at point 1. Repeat this procedure for points 2 through 5.

    d ) Find the numercial values for each of the velocity vectors in pard (b) and each of the acceleration vectors in part (c), leaving them with the unspecified units for distance.

    e) How mant meters does each distance unit represent?

    2. Relevant equations


    3. The attempt at a solution

    I have no idea about this problems...please help me

    Attached Files:

    • PHY3.jpg
      File size:
      34.5 KB
    Last edited: Oct 2, 2009
  2. jcsd
  3. Oct 2, 2009 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    I'll assume you can do (a), but just to be sure I'll mention that the "0" goes in the lower left and the "6" in the lower right.

    (b) What is the definition of average velocity? That will be useful here.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook