Nonconsevative force ramp problem

[duckyboy]

Homework Statement

m1=2kg, g=10m/s2, coefficient of static friction=0.6 y coefficient of dynamic friction=0.4 .

So there is a box m1 at the top of a ramp, and one assume is slidding.

2.¿if the angle of the ramp = 30o , the height of the ramp =1m. What is the coefficient of dynamic friction so the box stops at the bottom of the ramp?

Homework Equations

The Attempt at a Solution

 

[gneill]

Why does your problem statement specify the value that you're supposedly trying to find (the coefficient of dynamic friction)? Also, there's no mention of initial velocity for the sliding box.