4.124 A cylinder with radius r rolls from rest down a slope, the vertical profile of which is given by y2 = kx2. The center of mass of the cylinder is from the beginning at the height H above the bottom of the pit. At first, the cylinder rolls without slipping. This applies all the way down to the bottom level. The other side of the pit is smooth. How high above the bottom level does the cylinder reach? 2r You have to draw the free body diagram and kinematic diagram of the figure. The answaer of the question is:h =(2H + r) 3