Finding Average Velocity between .7 m/s and -1.25 m/s

[Petrucciowns]

So far when calculating velocity I have used Initial velocity and Final velocity, but now I need to calculate the average velocity when given two separate velocity values, the highest velocity and the lowest velocity. So how would I find the average of velocity when I have a high of .7 m/s and a low of -1.25 m/s.

Thanks

 

[rock.freak667]

$$\bar{x} = \frac{\Sigma x}{N}$$OR to make life easier, the mean of 2 and 3 is (2+3)/5EDIT: yeah should be (2+3)/2

 

[Petrucciowns]

Wait.. ,but if you divide anything by itself it is going to equal one. Also, how would I read that equation? I don't really understand it.

 

[Pengwuino]

Wait.. ,but if you divide anything by itself it is going to equal one. Also, how would I read that equation? I don't really understand it.

N is the number of samples you have. In your case, 2. I think he meant to divide by 2.

 

[diazona]

So far when calculating velocity I have used Initial velocity and Final velocity, but now I need to calculate the average velocity when given two separate velocity values, the highest velocity and the lowest velocity. So how would I find the average of velocity when I have a high of .7 m/s and a low of -1.25 m/s.

Thanks

Actually there's not enough information to answer that. Does the velocity change smoothly (i.e. at a constant rate) from the high velocity to the low velocity, or from the low velocity to the high velocity? Or does it oscillate between the high and the low velocity? Or is there some other behavior?

 

[Pengwuino]

Oh yah, there is a problem. Knowing the maximum and minimum can't show you what the average velocity if you're dealing with the same object. The initial and final positions allow you to tell what the average velocity was given how much time has passed.