in Am; = 45 kgskier starts at point Awith an initial speed of mi = 2 . The ski ramp is defined by the 3 equation '9' 2 {DJ}! - $2 + 7) m. H int: 1. Neglect friction. 2. Point B is on the yaxis. Values for the figure are given in the following table. Note the figure may not be to scale. Variable Value (11 19 I11 Using the equations of motion in the normal-tangential coordinates and Principle of Work and Energy, a. Determine the radius of curvature of the ramp at point B, p. b. Determine the slopefangle of incline of the ramp at point B, 91. :3. Determine the speed of the skier at point B, '03. d. Determine the normal force exerted on the skier by the ski ramp at point B, N