Homework Help: Projectile motion(2)

1. Oct 2, 2009

kevin948

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

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Last edited: Oct 2, 2009
2. Oct 2, 2009

Redbelly98

Staff Emeritus
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.