# How to find Vf when you have muK, distance and an angle? (answer as soon as possible)

1. Jul 31, 2010

### joseernesto

1. The problem statement, all variables and given/known data

a skier starts from rest at the top of a 20° incline and skis in a straight line to the bottom of the slope, a distance D of 400 meters. if the coefficient of kinetic friction between the kis and the snow os .2, calculate the skier´s speed at the bottom of the run

2. Relevant equations
ive tried all the equations that include all the variables but im always missiing one variable like time, mass or acceleration

3. The attempt at a solution

2. Jul 31, 2010

### bp_psy

Re: how to find Vf when you have muK, distance and an angle? (answer as soon as possi

You actually have the acceleration.It is the component of g along the slope.You don't need the mass and the time(what time?).

3. Jul 31, 2010

### joseernesto

Re: how to find Vf when you have muK, distance and an angle? (answer as soon as possi

when u say g you are talking about gravity right?