Question is-

In the assesment of a buffers performance railway wagon of mass 6 tonne is allowed to roll freely down an incline of 1 in 20 Sine for a distance of 50M into a horizontal yard. At the end of yard is brought to rest by a pair of parrallel springs. The stiffness in each spring is 30kN/m and the intial resistance is 4.5kN. Calculate comprssion of springs.

I can to the final part once I know speed of inpact on springs.

I cant work out speed on wagon as point of impact.

The length of slope is 50m and height will be (50/20 which is 2.5m). I just need to know how to work out speed?

Cheers

Sheldon