# How to find an average acceleration using an average velocity?

Homework Statement:
Calculate the average acceleration for each member over the first 10.0 m.
Relevant Equations:
None given
I calculated the average velocity in a previous problem and got 1.146788991m/s over a time of 8.72s. I know I can’t use a_ave=(Vf-Vi)/(Tf-Ti) because I don’t know the final velocity and have no way to find it. Do I multiply average velocity by time?

haruspex
Homework Helper
Gold Member
2020 Award
Homework Statement: Calculate the average acceleration for each member over the first 10.0 m.
Homework Equations: None given

I calculated the average velocity in a previous problem and got 1.146788991m/s over a time of 8.72s. I know I can’t use a_ave=(Vf-Vi)/(Tf-Ti) because I don’t know the final velocity and have no way to find it. Do I multiply average velocity by time?
Please post the full problem so that we can see what data you have available.

• FactChecker
FactChecker
Gold Member
The full problem statement is necessary. For one thing, there is a difference between "average" over time versus "average" over distance.

kuruman
Homework Helper
Gold Member
Do I multiply average velocity by time?
Not if you are looking for something that has dimensions of acceleration.

WWGD
Gold Member
Maybe average velocity= (Vf - Vi)/2?

ZapperZ
Staff Emeritus