2. A slanted roof rises at 35. above the horizontal, and the straight-line distance from the top of the roof to the bottom edge is 4.5 m. The roof is covered with ice, so it offers no friction to objects sliding on it. A piece of ice at the top suddenly breaks loose and begins to slide down from rest. a. Sketch a diagram with all forces acting on the ice piece the moment it breaks off. b. Use newton's laws of motion to calculate the component of the acceleration due to gravity. C. How long will it take for the ice to reach the bottom edge of the roof? d. How fast will the ice be traveling just as it reaches the bottom edge