6.11 Consider two cases of objects rolling without slipping down an incline. Case 1 is a hollow cylinder of mass on = 2.50 kg and radius R1 = 0.20 In; Case 2 is a solid cylinder having the same mass and radius. (80 m2 = 2.50 kg and radius R2 = [LEI] 111.) Both objects move such that the center of mass for each object drops by a distance h = LIEU m when they reach the bottom of the incline. (Note: it is not necessary to know the angle of the incline to solve this problem.) What is the center of mass velocity for each object at the bottom of the incline? Explain why one object reaches the bottom sooner than the other. Note: Although we have not discussed conservation of energy for rigid bodies, you can assume that energy is conserved in this problem. In particular, even though there are friction forces acting on the objects, it turns out that these friction forces do not do any work; hence, no energy is lost during the motion