13. Rotational Inertia & Energy
Intro to Rotational Kinetic Energy
13. Rotational Inertia & Energy Intro to Rotational Kinetic Energy
4PRACTICE PROBLEM
A homogeneous metal sphere rotates about a frictionless axle at its center of mass at a constant angular velocity. The rotational kinetic energy of the sphere is 150J. What is the tangential velocity of a point on the rim of the sphere if the diameter of the sphere is 20 cm and its mass is 1.0 kg?
A homogeneous metal sphere rotates about a frictionless axle at its center of mass at a constant angular velocity. The rotational kinetic energy of the sphere is 150J. What is the tangential velocity of a point on the rim of the sphere if the diameter of the sphere is 20 cm and its mass is 1.0 kg?