What Is the Constant Acceleration of the Departing Train?

[sonaguess]

Homework Statement

Liz rushes down onto a subway platform to find her train already departing. She stops and watches the cars go by. Each car is 8.60m long. The first moves past her in 1.50 s and the second in 1.10 s. Find the constant acceleration of the train.

Homework Equations

The Attempt at a Solution

 

[Hootenanny]

Hi sonaguess and welcome to the forums,

What is the definition of acceleration?

 

[sonaguess]

the change in velocity is acceleration