Getting the average velocity from a parabolic curve

[theLHC]

Homework Statement

A ball accelerates steadily down a ramp, starting from rest. It goes 2m in 4s.
What is the average velocity?

The Attempt at a Solution

Well, i didnt attempt it because i didnt get it
i am thinking there is a typo and it is actually asking for the average acceleration, which i know how to do

here it is:

v1=0m/s
v2=x
d=2m
a=0.5m/s2
t=4s

so here is what i have

Aav= (P2-P1)/(t)
= (0-x)/(4)

now, i cannot go any furthur...

 

[Dick]

It's asking for average velocity. Average velocity is total displacement over total time. It's not that hard.

 

[theLHC]

It's asking for average velocity. Average velocity is total displacement over total time. It's not that hard.

i know that but the graph has a parabolic curve
so how do you derive the average velocity of a moving object from a parabolic curve?

 

[Dick]

Look up the definition of average velocity. Does the shape of the curve matter?

 

[theLHC]

nvm
i was mistaken
sorry 4 the problem
:P