A block of mass m=1.6kg slides down a frictionless incline. The block is released a height h=4.0m above the bottom of the half circular loop with radius R=0.8m. (a) What is the force of the inclined track on the block at the bottom (point A) (b) What is the force of the track on the block at point B? (c) At what speed does the block leave the track? (d) How far away from point A does the block land on the level ground