2. A 2.00 kg block is pushed against a spring with negligible mass and force constant k = 400 N/m, compressing it 2 m. When the block is released, it moves along a rough, horizontal surface with coefficient of kinetic friction k = 0.5, and then up a frictionless circular track with radius R = 5m. After it leaves the track, it moves along the same rough surface before moving up the frictionless snow-covered hill. Consider the block as a point mass. Length of the rough surfaces are given in the figure below. (a) What's the magnitude of the normal force when the block arrives the top of the circular track? (b) What's the height of the block (measured with respect to the ground) when it eventually stops in the hill? R = 5m k = 400 N/m m = 2.00 kg 8 m, rough 6m, rough