Please calculate the moment of inertia, final velocity (if possible), KE, and PE for the four cases.

1. Tall Solid cylinder, mass 1.6kg, length 23.0124cm, diameter is 3 inches. Time it took to come down: 1.661666667s

2. Tall Hollow cylinder, mass 42.57g, length 23.0124cm, diameter is 3 inches. Time it took to come down: 1.856666667s

3. Short Solid cylinder, mass 900g, length 16.51cm, diameter is 3 inches. Time it took to come down: 1.363333333s

4. Short Hollow cylinder, mass 27.8g, length 16.51cm, diameter is 3 inches. Time it took to come down: 1.651666667

Please explain why empty tall cylinder took the longest time. Also explain why filled short took the shortest time to get down using inertia. If its wrong, please explain why this experiment was wrong

Angle of inclined plane is about 10.635 degrees, height of ramp is 30 cm.