(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A skier goes down a slope with an angle of 35 degrees relative to the horizontal. Her

mass, including all equipment, is 70 kg. The coefficient of kinetic friction between her

skies and the snow is 0.15.

A. Please draw a free-body diagram of the skier.

B. Calculate the net force acting on the skier.

C. If the slope is 60 m long, what is her speed at the bottom of the slope,

assuming that she started from rest?

2. Relevant equations

Fg= -mg

F=MA

ect.

3. The attempt at a solution

Does this like correct? (Especially B and C, seeing as I have never done this type before)

My A is:

http://img88.imageshack.us/img88/1207/freend1.th.png [Broken]

My B is:

Fg=-mg

Fg=-70(9.81)

Fg=-686.7 N

Fk= LaTeX graphic is being generated. Reload this page in a moment.Fg

Fk= .15 (-686)

Fk = -102.9 N

Net Force: -686.7 - -102.9= -583.8 N

C.) (The length of the ramp dosn't really matter does it?)

F=MA

-583.8= 70A

-8.34 m/s^2 =A

Thanks!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Ramp problem

**Physics Forums | Science Articles, Homework Help, Discussion**