a skier is acceleration down a 30.0 degree hill at 3.50 m/s^2. how long (in seconds) will it take her to reach the bottom of the hill. assuming she starts from rest and accelerates uniformly, if the elevation change is 120m?

Answer 1

the distance down slope is 120/sin30 = 240m
So, just solve
1.75t^2 = 240