Calculating the Length of an Incline Plane: A Kinematic Approach

[baird.lindsay]

Homework Statement

a skier starts on a hills inclined 15 degrees and the speed of the skier on the bottom of the hill is 15m/s
what is the length of the hill? and how long did it take to reach the end of the hill

Homework Equations

gsintheta , a^2+b^2 + c^2
sin=o/h

The Attempt at a Solution

i broke down the vector to components 15sintheta and 15cos theta and use pythagorean thereoum to find the slope ..would that then be the length of the hill? I am not sure how to solve to dind the time to reach the end of the hill. ...

 

[haruspex]

You must post your actual steps, not just a rough verbal description. Anyway, it doesn't sound right. You need to be using kinematic equations relating constant acceleration, time, and initial and final speeds. What equations can you quote like that?