Question

Any help you math/physics experts?
A 60.2-kg skiier heads down a frictionless slope from rest on an incline of 33.9 degrees. The hill is 51.3 meters high on the vertical.

What is the skiier's final velocity (in m/s) at the bottom? Ignore air resistance.

Answer 1

The force due to gravity can be broken down into a force perpendicular and parallel to the surface, the component perpendicular to the surface is being cancelled out by the normal force of the surface so only the parallel force to the surface will affect the acceleration