A snowboarder of mass m slides downhill from rest. The hill has an inclination angle ?. The coefficient of kinetic friction between the snow and the board is ?k for both the hill (distance AB) and the flat ground at its base (distance BC = d). Next, the snowboarder proceeds to slide along an iced semi-circular path of radius R, where the kinetic friction force f k between the snow and the board has constant magnitude.

What is the minimum height, H min, above ground level from which the snowboarder should start their slide in order to just make it to point E? Note, the snowboarder is about to fall off the track at point E

2. A snowboarder of mass m slides downhill from rest. The hill has an inclination angle 6. The coefficient of kinetic friction between the snow and the board is pk for both the hill (distance AB) and the flat ground at its base (distance BC = (1). Next, the snowboarder proceeds to slide along an iced semi-circular path of radius R where the kinetic friction force fk between the snow and the board has constant magnitude. Given Earameters: m, d, 9, R, H, uh fk fk = cons