Calculating Slide Distance on an Inclined Surface with Friction

[vysis]

Homework Statement

A skier on a slope inclined at 4.7 degrees from the horizontal starts down the slope with an initial speed of 2.7m/s. The coefficient of friction is 0.11. Determine how far the skier will slide before coming to a rest.

Homework Equations

Fnet=ma
F(f) = (mu)N

The Attempt at a Solution

Completely lost =(

 

[LowlyPion]

Homework Statement

A skier on a slope inclined at 4.7 degrees from the horizontal starts down the slope with an initial speed of 2.7m/s. The coefficient of friction is 0.11. Determine how far the skier will slide before coming to a rest.

Homework Equations

Fnet=ma
F(f) = (mu)N

The Attempt at a Solution

Completely lost =(

What is the component of gravitational force on the skier that would induce the skier to continue down hill? What is the retarding force?. Using that find the rate of deceleration. That might be a good place to start then.

 

[vysis]

What is the component of gravitational force on the skier that would induce the skier to continue down hill? What is the retarding force?. Using that find the rate of deceleration. That might be a good place to start then.

thats the thing though... it doesn't give you the mass. It ONLY gives you the force of kinetic friction and the initial speed

 

[vysis]

Solved, thanks guys

 

[LowlyPion]

thats the thing though... it doesn't give you the mass. It ONLY gives you the force of kinetic friction and the initial speed

Don't despair. Work things through. The mass may not matter.

When you develop the equation for the net force the mass part drops out to give you the net retarding deceleration.

You use that with the distance relationship that is v²/2a

Edit: Congrats then. Good Luck.