Help with incline plane question.

[thelmes]

Homework Statement

An Air Cart of mass m=10kg starts from rest on an inclined air track. It subsequently moves a distance of d=20m in a time t=4 sec along the track. There are two support legs that are a distance L= 20m apart. One of the legs is elevated to a height h=15m above the other. Compute the observed acceleration due to gravity

Homework Equations

I have no clue how to do this at all please help.

The Attempt at a Solution

 

[tiny-tim]

welcome to pf!

hi thelmes! welcome to pf!

use the standard https://www.physicsforums.com/library.php?do=view_item&itemid=204" equations to find the actual acceleration …

then use the positions of the support legs to find the slope …

show us what you get ​