Problem 8.70 A 71kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12 m. Part A If the skier's speed at point A in the figure is 7.0m/s, what is the normal force exerted by the snow on the skier at point B? Ignore frictional forces. Express your answer using two significant figures. F = ΓΕ, αβ, ΔΣ, 12 m A 1.75 m B Submit My Answers Give Up reset shortcuts? help N