same density.
Ok, roll them down a slight incline. They will have different moments of inertia, so the hollow one will have more inertia,so it will lag behind the solid ball.
http://hyperphysics.phy-astr.gsu.edu/hbase/imgmec/mic.gif
Two balls have the same size and mass. One is hollow, the other one is solid. How would you determine which is which without breaking them apart?
1 answer