New to calculating automotive formula. Help

[Mr Average]

Homework Statement

A vehicle has a mass of X tonne. Tractive effort is Y kN. Travelling on a level road. Formula to calculate acceleration is a=f/m and tractive resistance is 250N (for example). How the devil do I work out the acceleration of the vehicle? I am totally stumped.

Homework Equations

The Attempt at a Solution

 

[PhanthomJay]

It's F_net = ma, not F=ma. If you are given the mass of the vehicle, X, and the tractive effort, Y, and the tractive resistance, R, then a = F_net/X, where F_net is the algebraic sum of Y and R (which act in opposite directions). Don't forget to convert tonnes to kilograms, and be consistent with force units.

 

[xxChrisxx]

I'm struggling to find a way to walk you through this without giving the answer away.

You just put what you know in Newtons second law equation. look at the units of the info you are given, then look at the units used in the equation.

 

[Mr Average]

Thanks for the offers of help folks.