00:01
Okay, we're given the plot of position versus time.
00:07
Let's draw that real quick.
00:12
Okay, so it looks, i'm just going to do a rough sketch here.
00:15
It looks something like this, right? so it goes positive, and then still positive, but coming back, and then goes negative, and then back to zero.
00:33
And these times are two seconds, four seconds, five seconds, seven seconds, and eight seconds and the values are 16 meters i'm assuming six meters and negative six so 16 six so x in meters and time in seconds so we want to find the average velocity for a bunch of intervals first we're doing let's see how much we're do it first.
01:15
Okay, 0 to 2.
01:18
So remember i'll write it up here in the top right.
01:21
Average velocity is x final minus x initial over the change in time.
01:32
Okay, so between 0 and 2, what's x final? 16, what's x initial? 0.
01:41
Change in time is 2 seconds, so 8 meters per second.
01:45
Now between 0 and 4, x final is 6 meters, x initial is 0...