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

[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 can't understand the question.

 

[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

A railway wagon of mass 8 tonnes rolls from rest down an incline 1km long which falls 1m in 100m along the
track.

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

 

[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