- #1

fireearthair8

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## Homework Statement

A 3kg mass starts at rest and slides a distance d down a smooth 30deg incline, where it contacts an unstressed spring. It slides an additional 0.2 m as it is brought momentarily to rest by compressing the spring (k=400N/m)

What is the initial separation d between the mass and the spring?

## Homework Equations

F=ma

Vf = Vi + at

Us = 1/2kx^2

Ug = mgh

K = 1/2mv^2

## The Attempt at a Solution

I'm not sure how to approach this problem yet. I know that you need to find the Vf, using mgsin30 as the acceleration and Vi=0.