# Need help understand the question, and helping o solve it.

1. Sep 14, 2011

### exaty

1. A railway wagon of mass 8 tonnes rolls from rest down an incline 1km long which falls 1m in 100m along the
track. The resistance to motion is a constant 500N. Find the speed of the wagon at the bottom of the incline.
When it reaches the bottom of the incline the wagon collides, inelestically with a second wagon of mass 10
tonnes and both move off together horizontally. Find their common speed after the collision.

[i just cant understand the question.
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

2. Sep 14, 2011

### quietrain

read question once, get a feel
look at the question part by part.
solve it, and laugh at your teacher

ok maybe not the last point

anyway

what does this statement tell you? it would help to draw it out.
hint: its a right angle triangle

3. Sep 14, 2011

### danielakkerma

Hi...
What might always help someone starting to tackle any problem, whether be it simple or abstruse, is to try and sketch its parameters; Have you tried that?
After all, you have a slope with very specific instructions as to how to create it, as always what's supposed to happen on it and so on.
Give it a go,
Daniel