Rotational kinetic energy: a solid uniform disk of diameter 3. 20 m and mass 42
Rotational kinetic energy: a solid uniform disk of diameter 3. 20 m and mass 42 kg rolls without slipping to the bottom of a hill, starting from rest. If the angular speed of the disk is 4. 27 rad/s at the bottom, how high (in meters) did it start on the hill?.